The charge of an electron is equal to \(1.6\times {{10}^{-19}}\) C.

Using charge quantization as a guide,

Q = nqe, where n denotes the number of electrons and qe denotes an electron’s charge.

The number of electrons in a coulomb of charge may be determined by substituting the numbers in the preceding equation:

\(1C=n\times 1.6\times {{10}^{-19}}C\)

\(n=\frac{1}{1.6\times {{10}^{-19}}}=6.25\times {{10}^{18}}\)

Therefore, the number of electrons constituting one coulomb of charge is \(6.25\times {{10}^{18}}\)