Question

Calculate the mass and charge of one mole of electrons.

Answer 1

1 mol = 6.023 x 10²³ units

Mass of 1 mol of electrons = Mass of an electron x 6.023 x 10²³

= 9.1 x 10^-31 kg x 6.023 x 10²³

= 5.48 x 10^-7 kg

Charge on 1 mol of electrons = charge on an electron x 6.023 x 10²³

= 1.602 x 10^-19 C x 6.023 x 10²³

= 9.65 x 10⁴ C.