The cell potential of the reaction: PbSO4(aq) + Cr(s) ⇒ Pb(s) + Cr²+ (aq) + SO4²- (aq) is +0.55 V. This fact indicates that The reducing ability of Cr is 0.55 greater than that of Pb. 2+.

Using values from the table of standard reduction potentials, calculate the cell potential (in V) of the following cells. 2+ + (a) Fe(s) | Fe (aq) || Ag (aq) | Ag(s) V 2+ (b) Cd(s) | Cd²+ (aq) || Cr³+ (aq) | Cr(s) 2- 2+ (c) Cd(s), CdS(s) | S (aq) || Sn (aq) | Sn(s) V

9) At 25°C, what is the potential and the cell reaction for the following cell: Ni | Ni2+ (aq, 0010 M) || Cl(aq, 0.20M) | Cl2 (g, 1 atm) | Pt? What is the Keg at 298K?

With explanation Find the standard change in free energy and the equilibrium constant for the galvanic cell resulting from the cell notation provided below. P(s)|Cr2+(aq),Cr3+(aq)|| Pb2+(aq)|Pb(s)

A galvanic cell whose cell reaction is 2Fe3+(aq) + Zn(s) → 2Fe2+(aq) + Zn2+(aq) has acell potential of 0.72V. What is the maximum electrical work that can be obtained fromthis cell per mole of iron(III) ion?

A galvanic cell was constructed with a nickel electrode that was dipped into 1.1 M NiSO4 solution and a chromium electrode that was immersed into a solution containing Cr3+ at an unknown concentration. The potential of the cell was measured to be 0.557 V, with the chromium serving as the anode. The standard cell potential for this system was determined to be 0.487 V. What was the concentration of Cr3+ in the solution of unknown concentration?

A galvanic cell is constructed in which the overall reac- tion is Cr,O} (aq) + 14 H¿O*(aq) + 6 I (aq) → 2 Cr* (aq) 1 3 I,(s) | 21 H,0(€) (a) Calculate AE° for this cell. (b) At pH 0, with [C»O3¯] = 1.5 M and [I-] = 0.40 M, the cell potential is found to equal 0.87 V. Calculate the concentration of Cr³*(aq) in the cell.

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3. At 298 K, the EMF of the cell shown below is +0.84 V. Pt(s)|Fe²*(aq, a = 1), Fe³*(aq, 1)|| Ce**(aq, a = 1), Ce³*(aq, a = 1)|Pt(s) a = (i) Define what is meant by the standard EMF of the cell. (ii) Write down the cell reaction and the Nernst equation for the cell. (iii) Calculate the equilibrium constant for the cell reaction at 298 K.