Question

A zinc-copper battery is constructed as follows.
Zn | Zn2+ (0.70 M) || Cu2+ (2.30 M) | Cu

The mass of each electrode is 200. g.
(a) Calculate the cell potential when this battery is first connected.
1 V
(b) Calculate the cell potential after 10.0 A of current has flowed for 10.0 h. (Assume each half-cell contains 1.00 L of solution).

please tell me which equations to use?

Answer 1

Calculate the half cell with Zn using the Nernst equation.
Calculate the half cell with Cu using the Nernst equation.
Now put the two equations together with the equation and determine the cell potential.

Part 2. Use Faraday's Law to determine the coulombs of electricity used in the cell, convert that to grams Zn^+2 and grams Cu^+2 used, calculate the new concns of the cells, and redo part 1 the same way.

Answer 2

i don't kno