Question

Part A For the reaction 2003+ (aq) + 2C1- (aq)+2Co2+ (aq) + Cl2(g). E = 0.483 V what is the cell potential at 25°C if the concentrations are [C03+] = 0.633 M, [Co2+] = 0.664 M, and (C1-] = 0.758 M, and the pressure of Cl, is Pci, = 3.90 atm ? Express your answer with the appropriate units. ► View Available Hint(s) I MÅ Value o ? Units E =

Answer 1

so 3.90 atm Ho 0.082 atme molk x298K molarit so [de] = 0.1596 mol/letice H - OH ore 0.1596M Now putting all the values,

IP20.0 - 0.48 (Emt of the cell CEME # 0,483 - 109 (0.66)(1598) 7.639(0,753 = 0.483.- (-0.5 147) - 0.9977 V
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Ř K -0.059 log Llo ) polis Fat Lo] But here geven, og ett CENDO- Pelg = 3.90 atm T= 25°c = (273+25) K=298K so to find in terms of concentrea- tion, putting the ideal gas equation, (R=0.082 atme PV = nRT. moles V = volume T = Temperature ne number of I gas constant >> P gas co -