Calculate the number of electrons constituting one coulomb of charge.

Charge on one electron (e) = 1.6 × 10^-19 C

q = 1 C

Let n electrons constitute one coulomb of charge.

∴ q = ne

where,

q = charge
e = charge on one electron
n = number of electrons

⇒ n = $\dfrac{\text{q}}{\text{e}}$

⇒ n = $\dfrac{1}{1.6 \times 10^{-19}}$

= 6.25 x 10^-18 ≈ 6 x 10^-18

Therefore, the number of electrons constituting one coulomb of charge is 6 x 10^-18