What will be the hydrogen ion concentration in moles $L^{-1}$ of a solution whose $pH$ is $4.58$?

The $pH$ of human blood is $7.4$. The $[H^{+}]$ concentration will be:

The $pH$ of milk,black coffee,tomato juice,lemon juice and egg white are $6.8, 5.0, 4.2, 2.2$ and $7.8$ respectively. Calculate the corresponding hydrogen ion concentration $[H^+]$ in each.

The ionic product of water $(K_w)$ increases if:

An aqueous solution whose $pH = 0$ is

The $pH$ of a solution in which the $[H^{+}] = 0.01 \, M$ is