The total charge transferred is [tex]Q=25 C[/tex]. This total charge consists of N electrons, each one with charge [tex]e=1.6 \cdot 10^{-19}C[/tex]. To find N, the number of electrons transferred, we must simply divide the total charge by the charge of a single electron:
[tex]N= \frac{Q}{e}= \frac{25 C}{1.6 \cdot 10^{-19}C}=1.56 \cdot 10^{20} [/tex]
