Question

Electrode potential of cadmium is $-0.4$V and electrode potential of chromium $-0.74$V. $\left[C{d}^{2+}\right]=0.1$M and $\left[C{r}^{3+}\right]=0.01$M. Represent the cell.

Answer 1

The $C{r}^{3+}|Cr$ redox couple is represented by: $Cr\left(s\right)|C{r}^{3+}\left(0.01M\right)$

The $C{d}^{2+}|Cd$ redox couple is represented by: $C{d}^{2+}\left(0.1M\right)|Cd\left(s\right)$

Combined electrochemical cell will be:

$Cr\left(s\right)|C{r}^{3+}\left(0.01M\right)||C{d}^{2+}\left(0.1M\right)|Cd\left(s\right)$