What is the initial cell potential?

What is the cell potential when the concentration of Ni$2+$ has fallen to $0\mathrm{.}500?$

What is the concentration of Ni$2+$ when the cell potential falls to $0\mathrm{.}45$ V $?$

What is the concentration of Zn$2+$ when the cell potential falls to $0\mathrm{.}45$ V $?$MISSED THIS? Watch KCV Cell Potential and Concentration; Read Section

$20\mathrm{.}6.$ You can click on the Review link to access the section in your eText.

A voltaic cell consists of $Zn|Z{n}^{2+}(E^0=-0\mathrm{.}76(V))$ half$-$cell and a

$Ni|N{i}^{2+}(E=-0\mathrm{.}23(V))$ half$-$cell at $25C.$ The initial concentrations of

$N{i}^{2+}$ and $Z{n}^{2+}$ are $1\mathrm{.}30M$ and $0\mathrm{.}130M,$ respectively. The volumes of the

half$-$cells are the same.