If $[H^{+}]$ ion concentration of a solution is increased by $10$ times,its $pH$ will be:

The $pH$ of a solution is $9.95$. Calculate the $\left[OH^{-}\right]$ concentration.

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 increases with which of the following changes?

What is the normal $pH$ range of human blood?

At $80\,^{\circ}C,$ distilled water has $[H_3O^{+}]$ concentration equal to $1 \times 10^{-6} \, mol/L.$ The value of $K_w$ at this temperature will be