The volume of  $2MFeS{O}_4$ can be oxidized by a current of 0.965 ampere hour? (in ml) 

$1F=96500C=1equivalentofF{e}^{+2}$

$\left(0.965\times 3600\right)C=\frac{0.965\times 3600}{96500}wq=\frac{36}{1000}eq$

Equivalents $=N\times V\left(inL\right)$

$\frac{36}{1000}=\left(n\times M\right)\times V\left(in\text{}L\right)=2\times 2\times V\left(inL\right)$

$V\left(inL\right)=\frac{36}{1000\times 2\times }=0.009L=9ml$