Elektroda kalomel

05 mm. where T is the temperature (°C), and E is the electrode potential (mV). The diameter of these tubes is 0. Reaksi yang terjadi adalah: Sama seperti elektroda Ag/AgCl, potensial elektroda ini akan sangat dipengaruhi konsentrasi larutan KCl di dalam … Standard to LowProfile Reference Electrode Adapter. Saturated calomel electrode It is a commonly used reference electrode, it consists of a glass tube, that contains Hg at the bottom covered with solid Hg2Cl2 and above this the tube is filled with KCl solution. Elektroda kalomel 2.1) E = 0. A glass electrode is a type of ion-selective electrode made of a doped glass membrane that is sensitive to a specific ion. It has a reputation of being very stable and robust. Kalomel merupakan hasil perpaduan antara unsur raksa sebagai bahan utama dengan lapisan raksa, raksa klorida dan kalium klorida. Pasta Hg/HgCI terdapat di dalam tabung yang lebih dalam, dihubungkan dengan larutan KCI jenuh melalui lubang kecil. In this article, we shall study different types of electrodes, their representation, writing cell reactions, and finding e.280 V.273V from the 3. Jenis kedua 3.m. This arrangement is referred to as a "combination" electrode. It consists of a glass vessel having a bent side tube. Application: For Laboratory use only 231 mV +/- 10 (for Ag/AgCl electrode) 185 mV +/- 10 (for calomel/Sat KCl electrode) Compare this item. Elektroda adalah alat kecil yang digunakan untuk mengukur pH suatu sistem. Facing it with another equal and checking if the potential bias are close to zero. 2. The pertinent half reaction is. A platinum wires A is used for an electrical contact. d) It should not be used in solutions that contain proteins, sulphide or bromide. They are available in a variety of body materials, body styles, and sample requirements. Pertama, tidak ada zat Elektroda kalomel terbuat dari tabung gelas atau plastik dengan panjang 5 - 15 cm dan garis tengah 0,5 - 1 cm. a) These electrodes have good electrical and chemical stability. Aqueous reference electrodes: Saturated Calomel (Hg 2 Cl 2) - The saturated calomel electrode (SCE) is the most popular reference electrode. In acid–base reaction: Dissociation constants in aqueous solution. Ecalomel = E°calomel + (RT / nF) ln [Hg2Cl2] / [Hg] Where: "Ecalomel" is the potential of the calomel electrode. Tabung dibenamkan dalam larutan yang pH-nya akan diukur beserta dengan tabung elektroda kalomel, yang keduanya dihubungkan ke pH meter. Faktor yang mempengaruhi pembacaan hasil laju korosi adalah jarak antara elektroda kalomel dengan bahan uji, jarak dibatasi kurang lebih 2 mm untuk mendapatkan hasil Question: The given potentials are observed for a calomel electrode: E° = 0. two commonly used reference electrodes are standard hydrogen electrode (SHE) and Calomel electrode. Jenis pertama 2. The most common application of ion-selective glass electrodes is for the measurement of pH. Pine Research offers three reference electrode storage vessels. The meaning of CALOMEL ELECTRODE is a reference electrode consisting of mercury, calomel, and potassium chloride solution.34 V) rather than positive. The most common application of ion-selective glass electrodes is for the measurement of pH. The working principle of the pH meter is also based on the above glass electrode setup. A little H g is placed at the bottom of the dry glass tube.05916 logaAg+ (23. If we saturate the indicator electrode’s half-cell with AgI, the solubility 3. Introduction. Harga potensial SCE adalah 0,244 V pada 25 C 6 7 dibandingkan terhadap elektroda hidrogen standar.24M potassium hydroxide solution. … Elektrode kalomel jenuh (EKJ), bahasa Inggris: saturated calomel electrode, (SCE), adalah elektrode pembanding berdasarkan reaksi antara unsur raksa dan raksa (I) klorida. Here's the best way to solve it. Alligator Clip, fits Banana Plug.H. Dia menitrasi ion halida dengan kalium permanganat menggunakan elektroda platina … Elektrode kalomel jenuh (EKJ), bahasa Inggris: saturated calomel electrode, (SCE), adalah elektrode pembanding berdasarkan reaksi antara unsur raksa dan raksa (I) klorida.03- 0. This arrangement is referred to as a … Kalomel merupakan hasil perpaduan antara unsur raksa sebagai bahan utama dengan lapisan raksa, raksa klorida dan kalium klorida. Kontak elektroda ini dengan larutan dari setengah sel lainnya melalui penyekat yang terbuat dari porselen atau asbes Elektroda kalomel terbuat dari tabung gelas atau plastik dengan panjang 5 - 15 cm dan garis tengah 0,5 - 1 cm.1) (23. Elektroda kalomel (SCE) Hg 2 Cl 2 (jenuh), KCl (xM)/Hg Reaksi: Hg 2 Cl 2 + 2e == 2 Hg (l) + 2 Cl-Pada 25o C, E SCE = 0,244 E°cell = E°cathode − E°anode 0. For Tris buffers, pH increases about 0. Metal – metal ion electrodes. Calomel is a mercury chloride mineral with formula Hg 2 Cl 2 (see mercury (I) chloride ). A little H g is placed at the bottom of the dry glass tube. E =. The pertinent half reaction is. By exploiting the cheapest and greenest source of electrons, electricity itself, electrolysis has been shown to be a powerful Kondisi elektroda kalomel yang baik dan larutan KCl jenuh yang terdapat di dalam elektroda menjadi hal yang menentukan hasil pembacaaan dari metode potensiometri.28V.1) E = 0. The SHE contribution to the cell potential is by convention zero at all temperatures. Dia menitrasi ion halida dengan kalium permanganat menggunakan elektroda platina mengilap dan elektroda kalomel. Pasta Hg/HgCI terdapat di dalam tabung yang lebih dalam, dihubungkan dengan larutan KCI jenuh melalui lubang kecil.7996 V + 0. The aqueous phase in contact with the mercury … Elektrode kalomel jenuh (EKJ), bahasa Inggris: saturated calomel electrode, (SCE), adalah elektrode pembanding berdasarkan reaksi antara unsur raksa dan raksa(I) klorida.27V = Eo cathode − ( − 0. Sebaliknya, elektroda kaca bukanlah elektroda referensi, dan digunakan bersama dengan beberapa elektroda referensi lainnya. In the calomel half cell the overall reaction is. Calomel electrode is a metal-sparingly soluble salt electrode. KCI jenuh melalui lubang kecil.meti siht erapmoC . The potential does vary with temperature, but between 10 - 40°C, can be estimated by the equations (see reference 2): E = 205 - 0. This brochure provides further information on the silver/silver chloride reference electrode.Harga potensial SCE adalah 0,244 V pada 25˚C kalomel jenuh dan elektroda Ag/AgCl. The SHE contribution to the cell potential is by convention zero at all temperatures. This electrode can be relatively easier to make and maintain compared to the standard hydrogen electrode (SHE). There are three types of gas electrodes. The electrode whose potential is arbitrarily fixed or is exactly known at a given constant temperature is known as a reference electrode. Elektroda kalomel Elektroda ini terbuat dari tabung gelas atau plastik dengan panjang ± 10 cm dan garis tengah 0,5 - 1 cm yang dicelupkan ke dalam air raksa yang kontak dengan lapisan pasta Hg / HgCl2 yang terdapat pada tabung bagian dalam Abstract. It is composed of a solid paste of Hg2Cl2 and liquid elemental mercury attached to a rod that is immersed in a saturated KCl 3. The half-cell reaction is: Fig.05916 log a A g +. U unutrašnjoj cijevi nalazi se pasta od žive, kalomela (kalomel je trivijalno ime za živin(I) klorid, Hg 2 Cl 2 ) i otopine kalijeva klorida u koju je uronjena platinska žica. Pasta Hg/HgCI terdapat di dalam tabung yang lebih dalam, dihubungkan dengan larutan KCI jenuh melalui lubang kecil.3. …a reference electrode, commonly the calomel electrode, serves to measure the actual hydrogen ion concentration, or the pH, of the solution. The remainder of the cell is filled with a normal (1 N) or decinormal (0.f. 2. Kontak elektroda ini dengan larutan dari setengah sel lainnya melalui penyekat yang terbuat dari porselen atau asbes berpori.05 unit per ten-fold dilution. Telah diverifikasi di laboratorium dan dalam praktik bahwa ujung elektroda konsumsi per unit waktu sebanding dengan kuadrat rantai: (Ini cukup logis, karena cocok dengan rumus energi yang dihasilkan dalam resistor: P = I 2 x R). Elektroda kalomel atau elektroda kalomel jenuh (SCE) digunakan terutama sebagai elektroda referensi yang berguna dalam mengkalibrasi elektroda lain. In analytical chemistry, potentiometric titration is a technique similar to direct titration of a redox reaction. E = 0. Potensial pada elektroda ini dihasilkan dari reaksi antara pasangan redoks Hg dengan Hg2Cl2 yang kontak langsung dengan merkuri. The pH electrode is an example of a glass electrode that is sensitive to hydrogen ions. 2. E$\degree$ (calomel electrode) = 5 0. If E is the electromotive force (in volts) observed by the electrode, the equation giving the pH is as In many electrodes designed for potentiometry, the reference half cell is contained within the body of the sensing electrode. Elektroda kalomel 2. The silver/silver chloride (Ag/AgCl) reference electrode is nowadays the most widely used reference electrode for potentiometric measurement and can be applied for the same applications as the SCE.When we close the circuit this time, the measured potential for the cell is negative (−0. For example, the potential of a Ag electrode in a solution of Ag + is. Electrodes potential characteristics match those of a saturated KCl calomel electrode. in potentiometry, see Chap. Show transcribed image text. KEMIJSKI RJEČNIK kalomel elektroda calomel electrode Kalomel elektroda referentna je elektroda temeljena na polureakciji Hg 2 Cl 2 (s) + 2e - → ← 2Hg (l) + 2Cl - Tablica: Ovisnost potencijala kalomel elektrode o temperaturi i koncentraciji KCl prema standardnoj vodikovoj elektrodi → Preuzimanje slike visoke kvalitete Citiranje ove stranice: Kontak elektroda ini dengan larutan dari setengah sel lainnya melalui penyekat yang terbuat dari porselen atau asbes berpori.3026RT/F mV. For the silver-silver chloride electrode, E* = 0.268 V and E (saturated KCI) = 0. THCLIP. Calomel electrode is the mercury-mercurous chloride electrode.05 unit per ten-fold dilution. It is used as secondary reference electrode to determine the standard potentials of the electrode. Elektroda referensi berperan sebagai anode, sementara elektroda indikator berperan sebagai katode Calomel. Kelola secara GRATIS dengan perangkat lunak manajemen SDS kami! Elektroda kalomel terbuat dari tabung ge las atau plastik, pasta . (3) A g C l ( s) + e − ⇌ A g ( s) + C l − ( s a t ′ d) The calomel electrode is the mercury-mercurous chloride electrode. Hg/Hg2Cl2/KCl 2. TITRASI POTENSIOMETRI Dalam titrasi potensiometrik digunakan beberapa macam elektroda: Elektroda Kalomel, biasanya digunakan untuk referensi. Saturated Potassium sulphate filling solution. The vessel is filled with mercury, a paste of Hg and Hg 2 Cl 2 (calomel) and saturated Read 3 answers by scientists to the question asked by Satish Kumar on Aug 3, 2015 Thermo Scientific Orion. To measure the potential of the Cu/Cu 2 + couple, we can construct a galvanic cell analogous to the one shown in Figure \(\PageIndex{3}\) but containing a Cu/Cu 2 + couple in the sample compartment instead of Zn/Zn 2 +. Nitrate Standard: 0. Haraga potensial dari SCE adalah 0,244 V pada 25 o C dibandingkan terhadap elektroda hydrogen standart. Elektroda pembanding: a. Elektroda kalomel yang dijual di pasaran memiliki beragam konsentrasi larutan kalium klorida, namun yang umum digunakan adalah elektroda kalomel jenuh dengan larutan KCl berada pada keadaan jenuh.3) AgCl ( s) + e − ⇔ Ag ( s) + Cl − (sat’d) DME or Dropping Mercury Electrode is used in Polarography to get quantitative and qualitative analyses of substances. It is a very stable reference electrode. Elektroda kalomel jenuh (saturated calomel electrode, SCE) We consider the following four: standard hydrogen electrode (SHE), Ag/AgCl reference electrode, saturated calomel electrode (SCE), and saturated sulfate electrode (SSE). Compare this item.73 × (T - 25) for an electrolyte of 3. The overall chemical reaction taking place in a cell is made up of two independent half-reactions, which describe chemical changes at the two electrodes. Pertama, Anda harus memperhitungkan bahwa elektroda setelah beberapa saat mendapatkan profil. `The redox half cell of the SHE is where the …`. Equilibrium reaction shown below takes place in calomel electrode. Kalomel terjadi sebagai mineral sekunder yang membentuk karena alterasi produk dalam deposit raksa. 11. (3.5 mm OD Jawab: a) Elektroda kalomel jenuh (saturated calomel electrode, SCE) biasanya banyak digunakan oleh para peneliti karena banyak tersedia di pasaran. Cat: /HgHg Cl 0 E 2 2 = +0,268 V Mengacu reaksi pada persamaan 1. The types of electromotive force (emf) measurements covered in this chapter include galvanic, concentration with and without transport, and glass electrode cells, over wide ranges of temperature and… Elektroda kalomel terbuat dari tabung gelas atau plastik dengan panjang 5 - 15 cm dan garis tengah 0,5 - 1 cm. To focus on the reaction at the working electrode, the reference electrode is standardized with Elektroda kalomel jenuh (saturated calomel electrode, SCE) biasanya banyak digunakan oleh para peneliti karena banyak tersedia di pasaran (Iyabu Hendri, 2014).g. Elektroda kalomel jenuh (saturated calomel electrode, SCE) biasanya banyak digunakan oleh para peneliti karena banyak o tersedia di pasaran. The electrode potential of any other electrode that can be measured is called a reference electrode. H + (aq) + e − = 1 2H2(g) Elektroda kalomel jenuh merupakan elektroda pembanding y ang s ering digunakan . Elektroda logam Elektroda membran Elektroda: 1. ISBN 0471405213. "n" is the number of electrons transferred in the half-reaction.laitnetop edortcele nwonk-llew dna elbats a sah taht edortcele na si edortcele ecnerefer A ., during voltammetric measurements) or to measure the potential of an indicator electrode in potentiometric measurements, since the Galvani potential difference of a single electrode is not measurable [ 1 ]. c) It can be used in places or solutions that have strong reducing agents. Exaxol.2. Electrodes potential characteristics match those of a saturated KCl calomel electrode. In other words, the electrode whose half-cell potential is known and is constant and completely insensitive to the composition of the solution is called a reference electrode. To focus on the reaction at the working electrode, the reference electrode is standardized with Elektroda kalomel jenuh (saturated calomel electrode, SCE) biasanya banyak digunakan oleh para peneliti karena banyak tersedia di pasaran (Iyabu Hendri, 2014). MP Biomedicals. Organic electrosynthesis is an old and rich discipline. elektroda hidrogen, elektroda kalomel jenuh, dan elektroda Ag/AgCl (Iyabu, 2 14). of a cell. The standard electrode potentials of some common redox couples are also provided. Primary Reference Electrode: Standard Hydrogen Electrode : The Standard Hydrogen Electrode is often abbreviated to SHE, and its standard electrode potential is declared to be 0 at a temperature of 298K.3. DME or Dropping Mercury Electrode is used in Polarography to get quantitative and qualitative analyses of substances.059 pH. Elektrode ini telah banyak digantikan oleh elektrode perak klorida, namun elektrode kalomel memiliki reputasi karena kekuatannya. Over this platinum wire are placed pure mercury.

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Because we are asked for the potential for the oxidation … Elektroda Hg/Hg2Cl2 disebut juga elektroda kalomel. E = E 0Hg22+/Hg + RT/2F ln K s (Hg2Cl2) - RT/F ln a Cl- ( 2) Early two terms in right side of equation ( 2) is replaced to E 0Hg2Cl2/Hg which is calculated to be 0.Elektroda kalomel jenuh (saturated calomel electrode,SCE) biasanya banyak digunakan oleh para peneliti karena banyak tersedia di pasaran. In other words, the electrode whose half-cell potential is known and is constant and completely insensitive to the composition of the solution is called a reference electrode. Metal–sparingly soluble metal salt electrodes. It is a useful means of characterizing an acid. For Tris buffers, pH increases about 0. Sebagian besar laboratorium memilih menggunakan elektrode berbahan kalomel karena pemeliharaan yang mudah.2415 − E 0 glass + 0. Metal - metal ion electrodes. Kandungan klorida dan kalsium klorida. Sebutkan langkah-langkah yang diperlukan untuk menyepuh suatu sendok dengan perak dan tuliskan reaksi yang terjadi! Potassium chloride (KCl) acts as a source of chloride ions for the electrode.2. Otherwise, cell potential E 1 is measured with a buffer of known pH 1. Primary Reference Electrode: Standard Hydrogen Electrode : The Standard Hydrogen Electrode is often abbreviated to SHE, and its standard electrode potential is declared to be 0 at a temperature of 298K.55V) E ° cathode = − 0. (2) Construction : It consists of a glass vessel with side arm B for dipping in a desired solution of another electrode like, ZnSO 4(aq) for an electric contact. Enter the recorded voltage in mV and select the reference electrode used to record it. Jenis ketiga •Elektroda selektif ion •Elektroda selektif molekul Contoh 1. To provide an external electrical contact, a platinum wire enclosed within a glass tube and immersed in a layer of Kalomel elektroda se najčešće upotrebljava kao referentna elektroda u laboratoriju, jer ju je lako pripremiti tako da ima točno poznat potencijal. Gas electrodes.Hal ini diketahui oleh para alkimiawan. Contoh Soal dan Pembahasan.hunej lemolak adortkele padahret 2/1E ialin utiay ,rutaretil adap iumetid tapad noi iagabreb 2/1E ialiN .03- 0. elektroda Ag/AgCl sebagai elektroda pembanding.m. The REF421 reference probe can be used in a variety of sample types. Redox Electrodes. glass tube that allows standard (9. Reference electrodes are necessary to control the potential of a working electrode (e.3 B is the schematic of the electrode. Harga potensial elektroda kalomel jenuh (SCE) pada suhu 25˚C Elektroda kalomel jenuh merupakan elektroda pembanding yang sering digunakan dalam potensiometri.2. Kontak elektroda ini dengan larutan dari setengah sel lainnya melalui penyekat yang terbuat dari porselen atau asbes Itu perbedaan utama antara kalomel dan elektroda kaca adalah bahwa elektroda kalomel adalah jenis elektroda referensi, sedangkan elektroda kaca adalah elektroda non-referensi. These values were determined in comparison with the electric potential of an S. it is also called as secondary re 1. Corning® reference electrode Calomel reference electrode; find -E9138 MSDS, related peer-reviewed papers, technical documents, similar products & more at Sigma-Aldrich The glass electrode develops a second potential at the membrane separating the standard HCl and the test solutions.2. Silver/Silver Chloride (Ag/AgCl) The silver/silver chloride reference electrode is composed of a silver wire, sometimes coated with a layer of solid Kalomel. Refillable Ag/AgCl This so-called reference electrode allows control of the potential of a working electrode (e. Elektroda perak 1. Temperature. Elektroda gelas untuk standard, untuk pengukuran pH dan untuk titrasi asidi- alkalimetri.f. Elektrode ini normalnya dihubungkan m… Ecalomel = E°calomel + (RT / nF) ln [Hg2Cl2] / [Hg] Where: "Ecalomel" is the potential of the calomel electrode. E = E 0Hg22+/Hg + RT/2F ln K s (Hg2Cl2) - RT/F ln a Cl- ( 2) Early two terms in right side of equation ( 2) is replaced to E 0Hg2Cl2/Hg which is calculated to be 0. Facing it in front of an Ag / AgCl / reference electrode and see if the value remains constant in The electrode is coated with a paste of mercury-mercurous chloride \ [ (Hg + H {g_2}C {l_2})\] also known as calomel. E = 0. A platinum wire sealed into a glass tube is dipped into mercury layer is used to provide the external electrical contact. Cat: /HgHg Cl 0 E 2 2 = +0,268 V Mengacu reaksi pada persamaan 1. Elektroda pembanding: a. Gambar. Compare this item. A typical cell might consist of two pieces of metal, one zinc and the other copper, each immersed each in a solution containing a dissolved salt Calomel electrode is a metal-sparingly soluble salt electrode. The electrode potential of any other electrode that can be measured is called a reference electrode. Table 2. "F" is Faraday's constant. "T" is the temperature.3.241 V. Larutan air yang kontak dengan raksa dan raksa(I) klorida (Hg2Cl2, "kalomel") adalah larutan jenuh kalium klorida dalam air.3, notasi skematis setengah sel dari elektroda kalomel dapat ditulis A reference electrode is an electrode that has a stable and well-known electrode potential. • Elektroda perak • Elektroda Raksa, Raksa (I) sulfat 2) Elektroda Kerja a.. Apabila E=E0 maka dinamakan potensial standar suatu logam. Calomel pHree electrode for biological applications is a mercury-free alternative to calomel electrodes. For precise applications, use a carefully calibrated pH meter with a glass/calomel combination electrode.05916 logaAg+ (23. The side tube is used for making electrical contact with a salt bridge. The reference electrode can act as both anode or cathode depending OrigaLys vous propose des électrodes de référence au Calomel (Hg), Oxyde Mercurique (Hg/HgO) et Argent/Chlorure d'Argent (Ag/AgCl). kalomel elektroda. Elektrode ini telah banyak digantikan oleh elektrode perak klorida, namun elektrode kalomel memiliki reputasi karena kekuatannya. Reaksi yang terjadi pada elektroda kalomel dapat dituliskan melalui persamaan 1. Ketiga elektroda ditempatkan dalam satu tabung yang mengandung analit. To do this, two electrodes are used, an indicator electrode (the The electrolyte solution in this reference system is normally a 3 M potassium chloride solution. 3700 Tennison Hill Drive Austin, TX 78738 USA Tel: (512) 402-0176 Fax: (512) 402-0186 E-mail: info@chinstruments. DO NOT store electrode in Elektroda kalomel. Hg + Cl - ⇔ 1/2Hg 2 Cl 2 + e - ( 1) The electrode potential is given as following equation. Pasta Hg/HgCI terdapat di dalam tabung yang lebih dalam, dihubungkan dengan larutan KCI jenuh melalui lubang kecil. Elektrode kalomel sering digunakan sebagai elektrode pembanding dalam pengujian menggunakan prinsip elektrokimia. (Please note that due to the high resistance of the ceramic A saturated calomel electrode is a reference electrode consisting of mercury and mercury-chloride molecules. Ketiga elektroda ditempatkan dalam satu tabung yang mengandung analit. (3. We also can use this electrode to determine the activity of another species if it is in equilibrium with Mn+. Dia mengatakan bahwa jika zat pengoksidasi ditambahkan ke dalam larutan pereduksi maka kesetimbangan antara zat pereduksi dan produk reaksi akan Elektrode kalomel jenuh (EKJ), bahasa Inggris: saturated calomel electrode, (SCE), adalah elektrode pembanding berdasarkan reaksi antara unsur raksa dan raksa (I) klorida.2. Ecell = Ecathode − Eanode. …accidentally. … Standard Electrode Potentials.It has been widely replaced by the silver chloride electrode, however the calomel electrode has a reputation of being more robust. The saturated calomel electrode (SCE) is a reference electrode based on the reaction between elemental mercury and mercury(I) chloride.Our extensive assortment of quality pH electrodes, sensors, and probes are designed to make your complex measurements routine, reliable, and accurate in both the lab or in the field. This is the standard electrode potential for the reaction Ni 2+ (aq) + 2e − → Ni (s). Karena nilai E1/2 merupakan besaran yang spesifik, dengan jalan menetapkan nilai E1/2 pada polarogram dan membandingkannya dengan niai yang terdapat pada literature, maka pada prinsipnya akan dapat diketahui jenis ion dalam larutan yang in this video i have explained about the calomel electrode , it is one of the reference electrode used in electrochemistry. Kontak elektroda ini dengan larutan dari setengah sel Elektroda kalomel jenuh (saturated calomel electrode, SCE) biasanya banyak digunakan oleh para peneliti karena banyak tersedia di pasaran. The redox half cell of the SHE is where the following reaction takes place: 2H+ (aq) + 2e- → H2 (g) The a.2.03-0. Hg/HgCI t erdapat di da lam tabung yang lebih dalam, dihubungkan dengan larutan . A saturated water solution of KCl (potassium A calomel electrode is a type of reference electrode based on reactions between mercury (I) chloride (calomel) and elemental mercury. …filling solution. Kalomelovou elektrodu obvykle tvoří roztok chloridu draselného, ve kterém je ponořena rtuť pokrytá chloridem rtuťným, který se ve formě minerálu nazývá kalomel. In this electrode, the mercury is constantly dropped into the solution from a reserve with the help of capillary tubes. A good non-polarizable calomel electrode is very robust, which is why it is used by many two-electrode systems where the supporting electrolyte is a E = 0. Besoin de plus d' informations ? Contactez nous au +33 9 54 17 56 03 ou remplissez notre formulaire. An ideal reference electrode would Thermo Scientific Orion. Mercury (I) chloride is the chemical compound with the formula Hg 2 Cl 2. Elektroda calomel atau elektroda kalomel jenuh (SCE) digunakan terutama sebagai elektroda referensi yang berguna dalam mengkalibrasi elektroda lain. Kalomelová elektroda je sekundární elektrodou srovnávací neboli referenční a používá se jako etalon při měření pH a v elektrochemii vůbec. This was known to alchemists. Compare this item.222 V.edortcele gnisnes eht fo ydob eht nihtiw deniatnoc si llec flah ecnerefer eht ,yrtemoitnetop rof dengised sedortcele ynam nI … erusaem ot sevres ,edortcele lemolac eht ylnommoc ,edortcele ecnerefer a… . Kalomelová elektroda je sekundární elektrodou srovnávací neboli referenční a používá se jako etalon při měření pH a v elektrochemii vůbec. An ideal reference electrode would have the Elektroda logam Elektroda membran Elektroda: 1. The REF421 is a screw cap electrode and requires an external connection cable for connection to a meter. Nous vous proposons entres autres, des électrodes de référence au calomel saturé. Gas electrodes. calomel: [noun] a white tasteless compound Hg2Cl2 used especially as a component of laboratory electrodes, as a fungicide, and formerly in medicine as a purgative — called also#R##N# mercurous chloride.3) AgCl ( s) + e − ⇔ Ag ( s) + Cl − (sat'd) Elektroda kalomel terbuat dari tabung gelas atau plastik dengan panjang 5-15 cm dan garis tengah 0,5-1 cm yang terdiri dari kawat platina yang terhubung dengan pasta merkuri cair, kalomel (Hg2Cl2) dan larutan jenuh KCl.Elektroda perak / perak klorida : elektroda pembanding yang mirip dengan elektroda kalomel yang terdiri dari suatu elektroda perak yang dilapisi dengan perak klorida dan dicelupkan ke dalam larutan KCl. Biasanya yang digunakan sebagai potensial elektroda standar adalah elektroda hidrogen baku atau elektroda kalomel baku. For example, the potential of a Ag electrode in a solution of Ag + is. 5. Write the half-reactions that occur in the two electrode compartments.03 unit per °C decrease in temperature, and decreases 0. In the latter case, each electrode-solution pair constitutes an oxidation-reduction half cell, and we are measuring the sum of the two half-cell potentials. Store your electrode in a solution of 4M kCl solution, If 4M KCl is not available, use a pH 4 Buffer We use 4M KCL + pH 4 buffer (Volume ration 1:1) it is better.1) (23. Elektroda Pt sebagai elektroda baku untuk titrasi presipitasi. 2. Crystals commonly tabular to prismatic, equant pyramidal; common as drusy crusts, earthy, massive. Saturated calomel electrode It is a commonly used reference electrode, it consists of a glass tube, that contains Hg at the bottom covered with solid Hg2Cl2 and above this the tube is filled with … E°cell = E°cathode − E°anode 0. Cari dari perpustakaan kami lebih dari 140 Juta SDS. Elektroda indikator (indicator electrode) merupakan elektroda yang potensialnya.The saturated calomel electrode (SCE) is a reference electrode based on the reaction between elemental mercury and mercury(I) chloride.g. If filled with saturated KCl in place of 4215F20 refill solution, characteristics match those of reference electrode with Ag-AgCl internal element and resulting….3, notasi skematis setengah sel dari elektroda kalomel dapat ditulis E. 2. Untuk titrasi redoks, pH-meter dapat dioperasikan dalam mode mV dan pasangan elektroda membran kaca - elektroda kalomel jenuh diganti dengan pasangan elektroda lain yang sesuai, misalnya elektroda platina sebagai elektroda kerja dan elektroda kalomel jenuh sebagai elektroda pembanding. The gas electrode is known as a non-metal electrode. Thermo Scientific Orion. 11 Kontak elektroda ini dengan larutan dari setengah sel lainnya melalui penyekat yang terbuat dari porselen atau asbes berpori. Elektroda kalomel terbuat dari tabung gelas atau plastik dengan panjang 5 - 15 cm dan garis tengah 0,5 - 1 cm. elektroda di mana kawat dihubungkan melalui genangan merkuri ke pasta merkuri klorida (Hg2Cl2, kalomel) dalam larutan kalium klorida yang dilapisi dengan larutan kalium klorida tambahan; umumnya digunakan sebagai elektroda referensi. Redox Electrodes. The KCl solution inside the tube can have ionic contact with solution outside and acts as a salt bridge. II. There are four types of electrodes. The saturated calomel electrode (SCE) is a reference electrode based on the reaction between mercury and mercury (I) chloride. Calomel electrode is a type of half cell in which the electrode is mercury coated with calomel (Hg2Cl2) and the electrolyte is a solution of potassium chloride and … hydrogen ion concentration. Can be disassembled for cleaning.7996V + 0.05916 log a A g +. "E°calomel" is the standard potential of the calomel … kalomel elektroda. (Inzelt, Lewenstam, and Scholz 2013, 77)The expression “normal hydrogen electrode” (NHE) is not a synonym for SHE, in fact, the NHE is the historical standard (due to Nernst in 1889) defined as a metal in contact with a … The Exaxol zobells solution with a heavy metal-free formulation comes in a poly bottle and is an ideal solution to have in chemical laboratories and research facilities. Mercury Elektroda (Elektroda Merkuri) Elektroda merkuri merupakan elektroda kerja dalam sistem polarografi, disamping 2 elektroda yang lain yaitu elektroda pembanding (Ag/AgCe atau kalomel jenuh) dan elektroda pembantu (Auxiallary elektroda) (Pt atau Au). (1) Since standard hydrogen electrode (SHE) is not convenient for experimental use, a secondary reference electrode like calomel electrode is used. The standard electrode potential is -0. Find step-by-step Chemistry solutions and your answer to the following textbook question: From the following potentials, calculate the activity of Cl$^-$ in 1 M KCl. If filled with saturated KCl in place of 4215F20 refill solution, characteristics match those of reference electrode with Ag-AgCl internal element and resulting…. Potensial elektroda standar merupakan ukuran kuantitatif dari kemudahan unsur untuk melepas elektron, jadi merupakan ukuran kekuatan unsur itu sebagai reduktor. hydrogen ion concentration.Namanya berasal dari bahasa Yunani kalos (cantik) dan melos (hitam) karena ia berubah menjadi hitam jika bereaksi dengan amonia. b) Silver/Silver Chloride Electrode (Ag/AgCl) The silver/silver chloride reference electrode is composed of a silver wire (Ag) that has been coated with a layer of solid silver chloride (AgCl), immersed in a solution that is saturated with KCl and AgCl. The name derives from Greek kalos (beautiful) and melas (black) because it turns black on reaction with ammonia.) Elektroda Ion Logam-Logam (pada elektroda ini ion analit berpartisipasi langsung dengan logamnya dalam The silver/silver chloride reference electrode is composed of a silver wire, sometimes coated with a layer of solid silver chloride, immersed in a solution that is saturated with potassium chloride and silver chloride. The reference electrode can act as both anode or cathode depending Elektroda kalomel jenuh merupakan elektroda pembanding yang sering digunakan dalampotensiometri. THCLIP.1 Products and Instrumentation. The above glass electrode setup can be used for the measurement of the pH of an unknown solution by the known value of E 0glass.g. A platinum wire sealed into a glass tube is dipped into mercury layer is used to provide the external electrical contact.

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2. Elektrode kalomel terdiri atas logam Hg yang menunggu pasta Hg, kalomel ( HgCl2 ), dan KCl. It consists of a glass vessel having a bent side tube. Elektroda kalomel terbuat dari tabung gelas atau plastik Elektrode kalomel jenuh (EKJ), bahasa Inggris: saturated calomel electrode, (SCE), adalah elektrode pembanding berdasarkan reaksi antara unsur raksa dan raksa (I) klorida. Glass electrodes play an important part in Standard hydrogen electrode. V.28V.com. Elektrode ini telah banyak digantikan oleh elektrode perak klorida, namun elektrode kalomel memiliki reputasi karena kekuatannya. Convert Potentials to Another Reference Electrode. The RE-6 and RE-4 reference electrodes (3 cm) are designed for use with BASi Electrochemical Flow Cells. The side tube is used for making electrical contact with a salt bridge. Calomel electrode is a type of half cell in which the electrode is mercury coated with calomel (Hg 2 Cl 2) and the electrolyte is a solution of potassium chloride and saturated calomel.03 unit per °C decrease in temperature, and decreases 0. Elektroda kalomel jenuh (saturated calomel electrode, SCE) biasanya banyak digunakan oleh pakar kimia analitik karena banyak tersedia di pasaran dan konsentrasi klorida tidak mempengaruhi haraga potensial elektroda.g.268 V E (calomel electrode, 1 M KCl) = 5 0. Equilibrium reaction shown below takes place in calomel electrode. In this electrode, the mercury is constantly dropped into the solution from a reserve with the help of capillary tubes.) Elektroda Ion Logam-Logam (pada elektroda ini ion analit berpartisipasi langsung dengan logamnya dalam The silver/silver chloride reference electrode is composed of a silver wire, sometimes coated with a layer of solid silver chloride, immersed in a solution that is saturated with potassium chloride and silver chloride.)lCgA/gA( tnegrA'd erurolhC/tnegrA te )OgH/gH( euqirucreM edyxO ,)gH( lemolaC ua ecneréfér ed sedortcelé sed esoporp suov syLagirO arap helo nakanugid kaynab aynasaib )ECS ,edortcele lemolac detarutas( hunej lemolak adortkelE .g.7996 V + 0. Nous vous proposons entres autres, des électrodes de référence au calomel saturé. "E°calomel" is the standard potential of the calomel electrode.03-0. This is the standard electrode potential for the reaction Ni 2+ (aq) + 2e − → Ni (s).0005 Nitrate Interference Suppressor Solution Filling Solutions: For 4210S10 Combination Electrode use 4210S03 For 4210S11 and S12 Half Cell Electrodes use 4210S40 For 4215F60 Half Cell Reference Electrode use 4215F70.E.g. Harga potensial. slides on to banana cable plug to allow clip connection to pin on end of reference electrode. No indicator is used; instead the electric potential is measured across the analyte, typically an electrolyte solution. It consists of a glass vessel having a bent side tube. a paste of Hg and Hg(2)Cl(2 2. This arrangement is called a galvanic cell. kalomelna elektroda ili kalomel je sekundarna elektroda koja omogućuje određivanje potencijala polovica stanica, zahvaljujući reakciji koja se događa između žive i živinog (I) klorida, Hg, prije poznat kao calomel. Compare this item. dalampotensiometri.2. The remaining portion of the cell is filled with a solution of normal (1 N) or Standard Electrode Potentials. b) Elektroda Ag/AgCl merupakan elektroda yang digunakan secara luas. Elektroda kalomel jenuh merupakan elektroda pembanding yang sering digunakan dalam potensiometri.gnol "5. This Demonstration converts the electrode potential between different reference electrodes. 4. Standard to LowProfile Reference Electrode Adapter. *Calculations derived from "Electrochemical Methods: Fundamentals and Applications", A J Bard and L R Faulkner, John Wiley & Sons, NY (2000). What is a Standard Hydrogen Electrode? The Standard Hydrogen Electrode is often abbreviated to SHE, and its standard electrode potential is declared to be 0 at a temperature of 298K. We also can use this electrode to determine the activity of another species if it is in equilibrium with Mn+. Reference electrodes are necessary to control the potential of a working electrode (e. Harga potensial SCE adalah 0,244 V pada 25oc. For precise applications, use a carefully calibrated pH meter with a glass/calomel combination electrode.27V = Eo cathode − ( − 0. Elektroda adalah alat kecil yang digunakan untuk mengukur pH suatu sistem. Elektroda kalomel jenuh (saturated calomel electrode, SCE) biasanya banyak digunakan oleh para peneliti karena banyak tersedia di pasaran. It discusses the reactions involved when it acts as anode and cathode. Silver/Silver Chloride (Ag/AgCl) - The Ag/AgCl reference electrode is simpler in construction than the SCE and it contains no mercury. Can be disassembled for cleaning. KCl), and porous pin junction. Calomel electrode is the mercury-mercurous chloride electrode. two commonly used reference electrodes are standard hydrogen electrode (SHE) and Calomel electrode. A platinum wire is in touch with Hg and it is used for electrical contact. Metal-sparingly soluble metal salt electrodes. AKREFHUT1 (see Figure 1) Reference Electrode Storage with Removable Lid and AKREFHUT2 (see Figure 2) Reference Electrode Storage are equipped with multiple 14/20 ports to vertically-orient and mount a standard size reference electrode (9. This electrode is ideal for alkali or fluoride media and is suitable for battery, energy, and electrochemical applications. Pasta Hg/HgCl terdapat di dalam tabung yang lebih dalam, dihubungkan dengan larutan KCl jenuh melalui lubang kecil. Application: For Laboratory use only 231 mV +/- 10 (for Ag/AgCl electrode) 185 mV +/- 10 (for calomel/Sat KCl electrode) Compare this item. In the calomel half cell the reactions are HgCl (s)⇌Hg + (aq)+Cl − (aq)Hg + (aq)+e⇌Hg (s) The overall reaction is HgCl Potentiometric titration electrode Gas electrode. Elektroda hidrogen merupakan elektroda pembanding yang utama. Jenis ketiga •Elektroda selektif ion •Elektroda selektif molekul Contoh 1. …accidentally. of a cell.7996V + 0. …of all buffers are temperature and concentration dependent.1000 ±0. The advantage of using KCl for this purpose is that it is pH-neutral. Reaksi yang terjadi adalah: Sama seperti elektroda Ag/AgCl, potensial elektroda ini akan sangat dipengaruhi konsentrasi larutan KCl di dalam elektrodanya. Elektroda kalomel Elektroda ini terbuat dari tabung gelas atau plastik dengan panjang ± 10cm dan garis tengah 0,5-1 cm yang dicelupkan ke dalam air raksa yang kontak dengan lapisan pasta Hg/HgCl2 yang terdapat pada tabung bagian dalam yang berisi campuran Hg, Hg2Cl2 dan KCl jenuh dan dihubungkan dengan larutan KCl jenuh melalui lubang kecil. Elektroda perak 1. slides on to banana cable plug to allow clip connection to pin on end of reference electrode. Nama ilmiah dari dan berturut-turut adalah Sebuah raksa (II) klorida dan kalsium klorida. In this electrode, pure H2 gas passed over pt foil is kept in [H +] solution then this type of electrode is used. The minute current flow required by the pH meter develops a double layer in the solutions, causes ion exchange at the inner and outer surfaces, and causes diffusion of ions across the glass membrane. This is because it acts as a reference for comparison with any other electrode. Most analyses recommend a drop interval of 1 to 5 seconds.3026RT/F mV. All plastic (PTFE/PP) configuration consisting of 4. dari elektroda ini dianggap nol pada tekanan 1 atm, suhu 25ᵒC dan konsentrasi 1M. Using reference electrodes unknown potential of any other single electrode can be found out e. Mercury Elektroda (Elektroda Merkuri) Elektroda merkuri merupakan elektroda kerja dalam sistem polarografi, disamping 2 elektroda yang lain yaitu elektroda pembanding (Ag/AgCe atau kalomel jenuh) dan elektroda pembantu (Auxiallary elektroda) (Pt atau Au).adirolk karep / karep adortkele nad lemolak adortkele utiay rednukes tradnats adortkele macam aud adA sebsa uata nelesrop irad taubret gnay takeynep iulalem aynnial les hagnetes irad natural nagned ini adortkele katnoK . This is because it acts as a reference for comparison with any other electrode. Using reference electrodes unknown potential of any other single electrode can be found out e.5 M KCl. Because we are asked for the potential for the oxidation of Ni to Ni 2+ under standard conditions, we must reverse the sign of E° cathode. Sebagian besar laboratorium memilih … Titrasi potensiometri pertama kali digunakan untuk titrasi redoks oleh Crotogino. Potensial pada elektroda ini dihasilkan dari reaksi antara pasangan redoks Hg dengan Hg2Cl2 yang kontak langsung dengan merkuri. Elektroda ini terdiri dari kawat perak (Ag) yang dilapisi AgCl yang melekat CH Instruments, Inc. Typically, KCl solutions of concentrations ranging from 3 molar to saturated are used in pH meters. Jenis pertama 2.05 mm. The following pagargraph is from the Wikipedia page of calomel:. Pasta Hg/HgCl terdapat di dalam tabung yang lebih dalam, dihubungkan dengan larutan KCl jenuh melalui lubang kecil. "R" is the gas constant.1 N) or saturate \ [KCl\] solution. Also known as the mineral calomel [4] (a rare mineral) or mercurous chloride, this dense white or yellowish-white, odorless solid is the principal example of a mercury (I) compound. (Inzelt, Lewenstam, and Scholz 2013, 77)The expression "normal hydrogen electrode" (NHE) is not a synonym for SHE, in fact, the NHE is the historical standard (due to Nernst in 1889) defined as a metal in contact with a solution saturated with hydrogen gas at 1 atm partial Elektroda Hg/Hg2Cl2 disebut juga elektroda kalomel. The Exaxol zobells solution with a heavy metal-free formulation comes in a poly bottle and is an ideal solution to have in chemical laboratories and research facilities.. Alligator Clip, fits Banana Plug. Glass electrodes play an important part in MP Biomedicals. Construction : The electrode consists of a glass tube provided with a bent side tube and another side tube B.The aqueous phase in contact with the mercury and the mercury(I) chloride (Hg 2 Cl 2, "calomel") is a saturated solution of Elektrode kalomel jenuh (EKJ), bahasa Inggris: saturated calomel electrode, (SCE), adalah elektrode pembanding berdasarkan reaksi antara unsur raksa dan raksa (I) klorida. It has been widely replaced by the silver chloride electrode, however the calomel electrode has a reputation of being more robust. Kalomelovou elektrodu obvykle tvoří roztok chloridu draselného, ve kterém je ponořena rtuť pokrytá chloridem rtuťným, který se ve formě minerálu nazývá kalomel. Ag/AgCl/KCl 2. II.9 The Radiometer REF421 Reference Electrode has a glass body, calomel reference system, refillable electrolyte (sat., during voltammetric measurements) or to measure the potential of an indicator electrode in potentiometric measurements, since the Galvani potential difference of a single electrode is not measurable [ 1 ]. Kontak elektroda ini dengan larutan dari setengah sel lainnya melalui penyekat yang terbuat dari porselen atau asbes The sodium electrode is wide used as a second-order reference electrode.2415 volt (25°C). glass tube that allows standard (9. Meskipun 13 dengan konsentrasi jenuh elektroda ini menjadi lebih peka pada perubahan suhu, elektroda jenis ini jauh lebih mudah untuk dirangkai. Kontak elektroda ini dengan larutan dari setengah sel lainnya melalui penyekat yang terbuat dari porselen atau asbes The potential of an electrochemical cell is the difference between the potential at the cathode, Ecathode, and the potential at the anode, Eanode, where both potentials are defined in terms of a reduction reaction (and are called reduction potentials); thus. The overall chemical reaction taking place in a cell is made up of two independent half-reactions, which describe chemical changes at the two electrodes.5 mm OD) reference electrodes to be used with LowProfile and Low Volume cells and accessories. There are four types of electrodes. Reaksi yang terjadi pada elektroda kalomel dapat dituliskan melalui persamaan 1. Pasta Hg/HgCI terdapat di dalam tabung yang lebih dalam, dihubungkan dengan larutan KCI jenuh melalui lubang kecil. It is used as secondary reference electrode to determine the standard potentials of the electrode.e( edortcele rotacidni na fo tnemerusaem eht ro )yrtemmatlov ni . Titrasi potensiometri pertama kali digunakan untuk titrasi redoks oleh Crotogino. Construction : The electrode consists of a glass tube provided with a bent side tube and another side tube B. `E = 199 - 1`. (1) Construction : (1) The calomel electrode consists of a glass vessel having side pocket B, for adding mercury and additional constituents and arm C, for submerging it in no desired find.55V) E ° cathode = − 0. The pertinent half reaction is. Pure mercury is placed at the bottom of the tube, which is covered with a paste of mercury- mercurous chloride (Hg + Hg 2 Cl 2) that is calomel. Jenis kedua 3. It explain The following table shows the electric potentials known for the calomel electrode (Hg-Hg2Cl2) and silver-silver chloride electrode (Ag-AgCl), which are well-known reference electrodes. If we saturate the indicator electrode's half-cell with AgI, the solubility A type of half cell in which the electrode is mercury coated with calomel (HgCl) and the electrolyte is a solution of potassium chloride and saturated calomel. Contoh lain dari elektroda jenis ini adalah elektroda kalomel, $\mbox{Hg|Hg}_{2}\mbox{Cl}_{2}(s)\mbox{|Cl}^{-}$ yang sering digunakan sebagai elektroda referensi (reference electrode). 1 / 4. To measure the potential of the Cu/Cu 2 + couple, we can construct a galvanic cell analogous to the one shown in Figure \(\PageIndex{3}\) but containing a Cu/Cu 2 + couple in … The electrode whose potential is arbitrarily fixed or is exactly known at a given constant temperature is known as a reference electrode. • Elektroda perak • Elektroda Raksa, Raksa (I) sulfat 2) Elektroda Kerja a. Hg + Cl - ⇔ 1/2Hg 2 Cl 2 + e - ( 1) The electrode potential is given as following equation.5 mm OD) reference electrodes to be used with LowProfile and Low Volume cells and accessories. The diameter of these tubes is 0. A glass electrode is a type of ion-selective electrode made of a doped glass membrane that is sensitive to a specific ion. Elektroda kalomel terbuat dari tabung gelas atau plastik dengan panjang 5 - 15 cm dan garis tengah 0,5 - 1 cm.273V from the In this article, we shall study different types of electrodes, their representation, writing cell reactions, and finding e. b) It can be used in temperatures greater than 600 o C.01 × (T - 25) for an electrolyte of saturated KCl. Standard hydrogen electrode. Besoin de plus d' informations ? Contactez nous au +33 9 54 17 56 03 ou remplissez notre formulaire. Elektroda kalomel (SCE) Hg 2 Cl 2 (jenuh), KCl (xM)/Hg Reaksi: Hg 2 Cl 2 + 2e == 2 Hg (l) + 2 Cl-Pada 25o C, E SCE = 0,244 11.3. 219811 Mercury-Mercury Oxide Reference Electrode. These electrodes are commonly used in voltmeters and pH meters. In acid-base reaction: Dissociation constants in aqueous solution. Use this information to predict the value of E for a silver-silver chloride electrode saturated with KCl. This video describes the construction of saturated calomel electrode (SCE). Oba reagensa, Hg i Hg, dobivaju ili gube elektrone ovisno o mediju u koji je elektroda uronjena. It is a component of reference electrodes in electrochemistry. Elektroda Kaca untuk Pengukuran pH (sumber: Fundamentals of Analytical Chemistry) Dibandingkan dengan elektrode indikator lain, elektrode kaca memiliki beberapa keunggulan. Most analyses recommend a drop interval of 1 to 5 seconds. All electrodes have a 6 mm OD glass body, and use a porous junction (frit) made from a ceramic material (for the RE-6 and RE-4) or CoralPor™ (for the RE-5B, part number MF-2064 ). Elektrode ini telah banyak digantikan oleh elektrode perak klorida, namun elektrode kalomel memiliki reputasi karena kekuatannya. …of all buffers are temperature and concentration dependent. Elektroda kalomel terbuat dari tabung gelas atau plastik dengan panjang 5-15 cm dan garis tengah 0,5-1 cm yang terdiri dari kawat platina yang terhubung dengan pasta merkuri cair, kalomel (Hg2Cl2) dan larutan jenuh KCl. Mercurous chloride is employed extensively in electrochemistry, taking advantage of the ease of its oxidation and reduction reactions. Shitova Article Zum System H2O2, Fe2+-, Fe3+Ion January 1956 · Monatshefte fü Chemie und verwandte Teile anderer Wissenschaften PDF | On Apr 20, 2022, Gilang Haras published "RESUME Kalomel adalah mineral raksa klorida dengan rumus Hg 2 Cl 2 (lihat raksa(I) klorida). The pH electrode is an example of a glass electrode that is sensitive to hydrogen ions. b.