The compound whose $0.1 \, M$ solution is basic is

The number of hydroxide ions,produced by one molecule of sodium carbonate $(Na_2CO_3)$ on hydrolysis is

The dissociation constant of a substituted benzoic acid at $25^{\circ}C$ is $1.0 \times 10^{-4}$. The $pH$ of a $0.01 \ M$ solution of its sodium salt is

What is the $pH$ of an aqueous solution of sodium acetate?

Which of the following salts does not undergo hydrolysis?

At $25\,^oC$,the dissociation constant for acetic acid is $K_a = 1.8 \times 10^{-5}$ and for $NH_4OH$ is $K_b = 1.8 \times 10^{-5}$. Determine the nature of an aqueous solution of ammonium acetate.