Fewpal
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in Chemistry by (40.3k points)

An acidified solution of 0.05 M Zn2+ is saturated with 0.1 M H2S. What is the minimum molar concentration (M) of H+ required to prevent the precipitation of ZnS ? 

Use Ksp (ZnS) = 1.25 × 10–22 and 

Overall dissociation constant of H2S , KNET = K1K2 = 1 × 10–21

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1 Answer

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[H+] = \(\frac{1}{5}M\) = 0.2 M

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