A conductivity cell filled with a 0.01 M KCl solution was found to have a resistance of 189 ohms at 25oC. When filled with 0.01 M HCl solution, the cell gave a resistance of 64.8 ohms at the same temperature. At 25oC, the conductivity of 0.01 M KCl solution was 1.4088 x 10-3 S cm-1. Calculate (a) the cell constant and (b) the conductivity of the HCl solution.

Q: An electrochemical cell consists of a Pt|H*(aq,1.00 M) |H₂(9) cathode connected to a Pt|H+…

A: Concentration of weak acid , HA = 0.181 M  Concentration of Conjugate base , A- = 0.157  M

Q: For the cell shown, the measured cell potential, Ecell, is -0.3657 V at 25 °C. Pt(s) | H₂(g, 0.777…

A: Given-> 2H+(aq) + 2e- ------> H2(g) E°= 0.00 V Cd2+(aq) + 2e- -------> Cd(s)  E°= -0.403 V…

Q: Write the Nernst equations for the variation of half-cell potentials with activities of species in…

A:

Q: Falculate the standard cell potential of the cell corresponding to the oxidation of oxalic acid, H2…

A: Since for any reaction, the Standard free energy change, ΔG0 is given by  ΔG0 = sum of (ΔG0f…

Q: 7. Use the Debye–Hückel limiting law and the Nernst equation to estimate the   potential of the cell…

A: Debye-Huckel Limiting Law: This law relates the mean ionic activity coefficient to the ionic…

Q: In a certain zinc-copper cell, Zn(s) + Cu2*(aq) – Zn2-(aq) + Cu(s) the ion concentrations are [Cu2*]…

A: Th Ecell of the cell reaction can be calculated by using Nernst equation as follows -

Q: The table below gives the standard electrode potential values of some electrode. What standard…

A: The potential of all electrodes are measured by comparing their potential to that of standard…

Q: The cell SCE || Ag, CrO, (sat 'd), CrO, (M) Ag is used for the determination of pCrO4. Calculate…

A: Recall the given cell notation,                     SCE  || Ag2CrO4 sat'd, CrO42- x M | AgThe cell…

Q: For the reaction 3Cu(s) + 2Au3+(aq)  3Cu2+(aq) + 2Au(s), Eocell = 1.16 V. Calculate the cell…

A:

Q: Consider the following electrochemical cell: Pt|H,(8,p°)|HCI(aq.b)|H8.C1,(s)|Hg() The potential of…

A: In a cell notation, the left-side represents the oxidation-half reaction and the right side…

Q: In the temperature range 0-90 ºC , the potential difference of the following cell: Pt (s) | H2 (g, f…

A:

Q: For the cell Ag | AgCl | Cl (a = 0.0001), Ce4+ (a = 0.01), 0.1)| Pt, solve for ein V, where the…

A: We know according to Nernst equation,Ecell  = E0cell - 0.0591/n log [Ce3+]/[Cl-][Ce4+] Where n =…

Q: Write the Nernst equations for the variation of half-cell potentials with activities of species in…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts…

Q: Determine the potential of a platinum electrode (vs. SHE) when placed in a mixture of 0.00207 M…

A: Since you have asked multiple question, we will solve the first question for you as per our…

Q: he measured cell potential, ?cellEcell, for the cell shown is −0.3605−0.3605 V at 25 ∘C25 ∘C.…

A:

Q: The potential of cell Zn|ZnCl2 (0.555 mol/kg)|AGCI(s)|Ag is 1.015 V at 25°C. The standard potential…

A: The mean activity coefficient of cation and anion can be calculated by using the debye-huckle…

Q: The resistances of a series of aqueous NaCl solutions, formed by successive dilution of a sample,…

A: Kohlrausch's Law According to Kohlrausch's Law, an electrolyte's equivalent conductivity at infinite…

Q: The saturated calomel electrode (SCE) is a reference electrode based on the reaction between…

A: The balanced overall cell reaction can be written by combining the half-cell reactions. The…

Q: The resistance of a 0.008 mol dm-3 solution of NaCl (aq) at 300 K was found to be 2.75 x 10³ Q. In a…

A: Molar conductivity is the conductance property of a solution containing one mole of the electrolyte…

Q: Consider the cell: Pt|H₂(g,p°)| HCl(aq)|AgCl(s)|Ag for which the cell reaction is 2AgCl(s) +H₂(g) →…

A:

Q: (i) Pt(s) + 2 NH3(aq) + 2 CI ( (aq) cis-[PtCl₂(NH3)2](aq) + 2 e¯ E° = 0.274 V The likely cathodic…

A:

Q: The mobility of a Li+ ion in an aqueous solution is 4.01×10−8 m2s−1 V−1 at 25°C. The potential…

A: We have asked the current rate. Basically, current rate is the rate by which current flows in an…

Q: Calculate the cell potential at 25°C for the reaction Fe(s)| Fe^3+ (aq,0.0952 M)|| C12(g,7.62 atm)…

A: Given -> T = 25°C  Fe(s)/Fe3+(aq,0.0952M)//Cl2(g,7.62atm)/Cl-(aq,0.0577M)/pt(s) E°cell = 1.396 V…

Q: Pt (s) | H2 (g, ƒ= 1) | HCI (aq, m = 0.1) | AgCl (s) | Ag (s) changes as follows with the…

A: The equation that describes the relationship between Gibbs free energy ∆G and emf of cell Ecell is…

Q: Given the cell notation Zn(s) | Zn2*(aq, a+/. = 0.0120) || Mn³*(aq, a,/. = 0.200), Mn²“(aq, a,/. =…

A:

Q: 7(a) The saturated calomel electrode (SCE) is a reference electrode based on the reaction between…

A: The balanced overall cell reaction can be obtained by combining the half-cell reactions. The…

Q: n the temperature range 0-90 ºC , the potential difference of the following cell: Pt (s) | H2 (g, f…

A: The equation that describes the relationship between Gibbs free energy ∆G and emf of cell Ecell is…

Q: Consider the electrochemical cell, Ni (s) | NiCl2 (aq, 0.0050 mol kg − 1) | Hg2Cl2 (s) | Hg (l), for…

A: Since you have posted a question with multiple sub-parts, we will solve the first three for you. To…

Q: Consider a hydrogen electrode in H Br(aq) at 25 °C operating at 145 bar. Estimate the change in the…

A: From the given data, it is known that for a SHE with PH2 value 145 bar in aqueous solution of HBr.…

Q: Express the relation among the cell constant, the resistance of the solutionin the cell and the…

A: The solution is made up of solute and solvent. The solvent is the major part of the solution which…

Q: For cell schematic notation    Zn(s) | ZnCl2 (1.0 M )| | CuSO4 ( 2.0 M ) | Cu(s)…

A:

Q: If a dilute H2 SO4 solution is electrolyzed with copper electrodes, the most likely electrode…

A: During the electrolysis of dilute sulfuric acid in presence of Cu electrode, hydrogen gas deposit at…

Q: Gibbs energy change, A:G®, is related to cell potential, E, by the equation Calculate the standard…

A: For the given cell, change in enthalpy and entropy at 25oC is as follows: ∆rHo = -729 kJ mol-1∆rSo =…

Q: 0.04 molar solution of NaCl is filled in a conductance cell at 25°C that showed a resistance of 175…

A: For NaCl solution : Conductivity ( k ) = G*R  Cell constant ( G* ) = k x R = 2.77 x 10-2 x 175  cm-1…

Q: The electrodes in a silver oxide battery are silver oxide 1Ag2O2 and zinc. (a) Which electrode acts…

A: Silver-oxide battery is the primary one in the miniature battery product.   It is used in…

Q: Consider the following electrochemical concentration cell at 25 oC: Ce3+(1 M)|Ce4+(0.01 M)||Ce4+(0.1…

A: Given Information:Ce3+(1 M)|Ce4+(0.01 M)||Ce4+(0.1 M)| Ce3+ (0.01 M)the activity coefficients of…

Q: In a research laboratory, the standard potential of the cell Pt(s)|H2(g)|HCl(aq)|AgCI(s)|Ag(s) was…

A:

Q: Consider the following cell:     Zn(s) | Zn2+(aq, 0.200 M) ‖ H+(aq, ? M) | H2(g, 1 M) | Pt(s)…

A: Anode Half-cell Reaction : Zn(s) → Zn2+(aq, 0.200 M) + 2e-  Cathode Half-cell Reaction : 2H+(aq) +…

Q: The Λm KCl(aq) 0.1 M at 298 K is 129 Scm2/mol. The resistance measured in a cell conductivity was…

A: The molar conductivity of the KCl =  ΛmKCl = 129 Scm2/mol The molarity of the KCl = MKCl = 0.1 M The…

Q: Salstrom and Hildebrand reported the following data for the cell Ag(s)|AgBr(s)||HBr(aq)|Br2(g, 1…

A: Temperature (oC)Cell Potential (V)442.30.80314560.7989490.90.7887521.40.7803538.30.7751556.20.7702To…

Q: 47. The Daniel cell is (a) Pt₁ (s)| Zn(s)| Zn²+ (aq) || Cu²+ (aq) | Cu(s)|Pt₁ (s) (b) Pt₁ (s)| Zn…

A: Daniel cell consists of two half cells. The half cell on the left contains a zinc metal electrode…