The mass of a mole of electrons is: 0.008 g 0.184 g 0.55 mg 1.673

Options

A. `0.55 mg`
B. `1.0008 g`
C. `1.000 g`
D. `0.184 g`

Explanation

The number of electrons in one mole= Avagadro number `= 0.025 xx 10^(23)`
Mass of one electron `= 9.1 xx 10^(-28) g`
Therefore mass of `6.025 xx 10^(23)` electrons is `= 9.1 xx 10^(26) xx 6.025 xx 10^(23) = 0.55 mg`