Question

How do you calculate the $pH$ of a strong acid or base?

Answer 1

To calculate the pH of a strong acid or base, we need to find its $\left[H^{+}\right]$ and $\left[O{H}^{-}\right]$ concentration.

Which can be easily found out from its equation of equilibrium, as they are strong acids and bases they will dissociate completely.

$pH=-log\left[H^{+}\right]$ and $pH=14-log\left[O{H}^{-}\right]$