Question

The Spontaneous Galvanic cell Tin | Tin ion (0.024M) ‖ Tin ion (0.064M) | Tin develops an emf of 0.0126 V at 250C, Calculate the Valency of Tin.

Answer 1

$E_{cell}=\frac{0.0591}{n}log\frac{C_2}{C_1}$

$0.0126=\frac{0.0591}{n}log\frac{0.064}{0.024}$

$n=1.998 \approx 2$

Hence the valency of $Ti$ is 2.