The $pH$ value of $0.1 \, M \, HCl$ is approximately $1$. What will be the approximate $pH$ value of $0.05 \, M \, H_2SO_4$?

What is the $pH$ of $0.005 \ M \ H_2SO_4$ solution?

Calculate the $pH$ of a $0.37 \ g$ $Ca(OH)_2$ solution in $200 \ mL$ of water. (Atomic masses: $Ca = 40, O = 16, H = 1$)

Assuming that $Ba(OH)_{2}$ is completely ionised in aqueous solution under the given conditions,the concentration of $H_{3}O^{+}$ ions in $0.005 \, M$ aqueous solution of $Ba(OH)_{2}$ at $298 \, K$ is $..... \times 10^{-12} \, mol \, L^{-1}$. (Nearest integer)

$pH$ of a $10 \ M$ solution of $HCl$ is

$pH$ of $HCl$ $(10^{-12} \ M)$ is