# Question 70106

Jun 11, 2016

$- 9.649 \times {10}^{4} C$, rounded to three decimal places
One mole is equal to 6.02214179×10^23 elementary units such as atoms or molecules etc. This number is called Avogadro's number.
$1$ mol of electrons means $6.0221 \times {10}^{23}$ electrons.
We know that charge on $1$ electron is $- 1.6022 \times {10}^{-} 19 C$
$\therefore$ cahrge on $1$ mol of electrons=6.0221×10^23xx(-1.6022 xx 10^-19)#
$= - 9.649 \times {10}^{4} C$, rounded to three decimal places