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What Is the Minimum PH at Which Cobalt(II)hydroxide (Ksp =

Question 82

Multiple Choice

What is the minimum pH at which cobalt(II) hydroxide (Ksp = 2.0 × 10-16) will precipitate from an aqueous solution of 0.020 M in Co2+?


A) 5.8
B) 6.2
C) 7.0
D) 7.8
E) 8.2

Correct Answer:

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