Question

Find the charge of 1 g ion of $N^{3-}$ in coulomb.

Answer 1

We have,

charge on one electron = $1.6\times {10}^{-19}C$

so, charge on 1 mole of $N^{3-}$ = $3\times 1.6\times {10}^{-19}C$

so charge on 14 g of $N^{3-}$ = $3\times 1.6\times {10}^{-19}C$

so, charge on 1 g of $N^{3-}$ = $\frac{3}{4}\times 1.6\times {10}^{-19}C$ =$1.2\times {10}^{-19}C$