Question

How many megacoulombs of positive charge are in $1.00$ mol of neutral molecular hydrogen gas$\left(H_2\right)$.

Answer 1

The $H_2$ molecules contain two-electron and two protons.

The total number of electron in $1mol$ of $H_2$is given by

$n=2\times 6.022\times {10}^{23}$

We know that charge is quantized so, the total positive charge is given by

$q=ne$

$q=2\times 6.022\times {10}^{23}\times 1.6\times {10}^{-19}C$

$q=19.27\times {10}^{4}C$

$q=0.1927MC$