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What Is the Hydroxide-Ion Concentration in a 0

Question 95

Multiple Choice

What is the hydroxide-ion concentration in a 0.16 M solution of Na2CO3? For carbonic acid,Ka1 = 4.2 × 10-7 and Ka2 = 4.8 × 10-11.(Kw = 1.0 × 10-14)


A) 5.8 × 10-3 M
B) 2.0 × 10-4 M
C) 6.2 × 10-5 M
D) 4.5 × 10-9 M
E) 2.8 × 10-6 M

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