List of practice Questions

Which will make basic buffer?

The dissociation constant of a weak acid is $1 \times 10^{-4}$ in order to prepare a buffer solution with a $pH = 5$ the [salt] / [Acid] ratio should be :

Solution of $0.1 \,N\, NH_4OH$ and 0.1 N $NH_4Cl$ has pH 9.25. Then $pK_b$ of $NH_4OH$ :-