Question

Find the charge in coulomb on $1gramion$ of $N^{3-}$.

Answer 1

Charge on one ion of $N^{3-}$
$=3\times 1.6\times {10}^{-19}coluomb$
One $g-ion=6.02\times {10}^{23}ions$
Thus, charge on one g-ion of $N^{3-}$
$=3\times 1.6\times {10}^{-19}\times 6.02\times {10}^{23}$
$=2.89\times {10}^{5}coulomb$.