Question

Calculate the standard cell potential of the following cell at 25°C. Sn(s) | Sn2+(aq) || Cu2+(aq) | Cu(s).

Answer 1

0.48 V

Step-by-step explanation:

Usually in the cell notation, the left side shows oxidation. So,

Oxidation half reaction:

`Sn_((s))\rightarrow Sn^(2+)_((aq))+2e^-`
`E^o_(ox)=-E^o_(red)=-(-0.14\ V)=0.14\ V`

Reduction half reaction:

`Cu^(2+)_((aq))+2e^-\rightarrow Cu_((s))`
`E^o_(red)=0.34\ V`

`E^o_(cell)=E^o_(ox)+E^o_(red)= (0.14+0.34)\ V=0.48\ V`