Polyprotic Acid

Find the concentration of HS $^-$ , S $^{2-}$ and H $_3$ O $^+$ in a 0.075 M solution of H $_2$ S

H $_2$ S + H $_2$ O $\longrightarrow$ HS $^-$ + H $_3$ O $^+$ , K $_{a1}$ = 1.0 x 10 $^{-7}$

HS $^-$ + H $_2$ O $\longrightarrow$ S $^2-$ + H $_3$ O $^+$ , K $_{a2}$ = 1.0 x 10 $^{-19}$

Posted by Andrew Gomez a year ago

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