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What Is the Selenide Ion Concentration [Se2-] for a 0

Question 14

Multiple Choice

What is the selenide ion concentration [Se2-] for a 0.100 M H2Se solution that has the stepwise dissociation constants of Ka1 = 1.3 × 10-4 and Ka2 = 1.0 × 10-11?


A) 3.6 × 10-3 M
B) 1.3 × 10-4 M
C) 1.3 × 10-5 M
D) 1.0 × 10-11 M

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