How many electrons are present in 1 coulomb of charge?

6.022 × 10²³

1.6 × 10⁻¹⁹

3 × 10⁸

6.25 × 10¹⁸

1 electron has a charge of 1.6 × 10⁻¹⁹ C

So, 1 C = 1 / (1.6 × 10⁻¹⁹) = 6.25 × 10¹⁸ electron