Em tham khảo nha:
\(\begin{array}{l}
1)\\
{H_2}S \rightleftarrows {H^ + } + H{S^ - }\\
H{S^ - } \rightleftarrows {H^ + } + {S^{2 - }}\\
KOH \to {K^ + } + O{H^ - }\\
N{a_2}C{O_3} \to 2N{a^ + } + C{O_3}^{2 - }\\
KHS{O_3} \to {K^ + } + HS{O_3}^ - \\
Zn{(OH)_2} \to Z{n^{2 + }} + 2O{H^ - }\\
Zn{(OH)_2} \to Zn{O_2}^{2 - } + 2{H^ + }\\
2)\\
{n_{HCl}} = 0,1 \times 1 = 0,1\,mol\\
{n_{{H_2}S{O_4}}} = 0,2 \times 1 = 0,2\,mol\\
{n_{{H^ + }}} = 0,1 + 0,2 \times 2 = 0,5\,mol\\
{n_{C{l^ - }}} = {n_{HCl}} = 0,1\,mol\\
{n_{S{O_4}^{2 - }}} = {n_{{H_2}S{O_4}}} = 0,2\,mol\\
{\rm{[}}{H^ + }{\rm{]}} = \dfrac{{0,5}}{{0,3}} = 1,67M\\
{\rm{[}}C{l^ - }{\rm{]}} = \dfrac{{0,1}}{{0,3}} = 0,33M\\
{\rm{[}}S{O_4}^{2 - }{\rm{]}} = \dfrac{{0,2}}{{0,3}} = 0,67M
\end{array}\)
