Use $K_{ sp }( ZnS )=1.25 \times 10^{-22}$ and
Overall dissociation constant of $H _2 S , K_{ NET }=K_1 K_2=1 \times 10^{-21}$
$\begin{array}{l}{\left[ S ^{-2}\right]=\frac{1.25 \times 10^{-22}}{0.05}} \\ =2.5 \times 10^{-21} M \end{array}$
$H _2 S \rightleftharpoons 2 H ^{+}+ S ^{-2}$
$K _{\text {Net }}=10^{-21}=\frac{\left[ H ^{+}\right]^2 \times 2.5 \times 10^{-21}}{0.1}$
${\left[ H ^{+}\right]^2=\frac{1}{25}}$
${\left[ H ^{+}\right]=\frac{1}{5} M =0.2 M }$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$\mathrm{MnO}_{4}^{-}+\mathrm{C}_{2} \mathrm{O}_{4}^{2-}+\mathrm{H}^{+} \longrightarrow \mathrm{Mn}^{2+}+\mathrm{CO}_{2}+\mathrm{H}_{2} \mathrm{O}$
the correct coefficients of the reactants for the balanced equation are
$\mathrm{MnO}_{4}^{-} \quad \mathrm{C}_{2} \mathrm{O}_{4}^{2-}\quad \mathrm{H}^{+}$
(Relative atomic masses of $Ag$ and $Br$ are $108\, u$ and $80\, u$, respectively).
$6-$ amino $-4-$ hydroxycyclohex $-2-$ ene $-1-$ sulphonic acid is