I'm having trouble with the following question, any help would be greatly appreciated.
A voltaic cell consists of a Zn/Zn^2+ half-cell and a Ni/Ni^2+ half-cell at 25 C . The initial concentrations of Ni^2+ and Zn^2+ are 1.30 M and 0.100 M , respectively.
What is the cell potential when the concentration of Ni^2+ has fallen to 0.500 M?
What is the concentrations of Ni^2+ when the cell potential falls to 0.45 M?
What is the concentration of Zn^2+ when the cell potential falls to 0.45 M?