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26. A solution of 0.075 M CoBr2 is saturated with H2S ( [H2S] = 0.10 M). What...

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Chemistry

26.
A solution of 0.075 M CoBr2 is saturated with H2S ( [H2S] = 0.10M). What is the minimum pH at which CoS ( Ksp = 5.9 x 10 -21) willprecipitate?
Ka1 =8.9 x 10 -8 & Ka2 = 1.2 x 10 -13 for H2S Ksp for CoS = 5.9x 10 -21

Answer & Explanation Solved by verified expert
3.6 Ratings (568 Votes)
If Ionic product of CoS solubility product of CoS CoS willstart precipitationKSP Ca2 S259 x 1021Ca2 of 0075 M CoBr2 75 x102 Mthe minimum S2 after    See Answer
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