SELECT * FROM question_mgmt as q WHERE id=1586 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=3 AND subId=9 AND chapterId=57 and ex_no='2' AND status=1 ORDER BY CAST(question_no AS UNSIGNED)

Question:

If the solubility product of CuS is 6 x 10-16, calculate the maximum molarity of CuS in aqueous solution.

Answer:

Solubility product of CuS, Ksp of CuS = 6 x 10-16

If s is the solubility,

then CuS = cu2+ + S2-

Therefore KSP = { cu2+}{ S2-}

Or

KSP = s x s

Or

s = √ KSP = √6 x 10-16

= 2.45 x 10-8 M


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