What Is the Concentration of CO₃^2- in a 0

question 117

Multiple Choice

What is the concentration of CO₃^2- in a 0.033 M solution of carbonic acid,H₂CO₃? For carbonic acid,Ka₁ = 4.2 × 10^-7 and Ka₂ = 4.8 × 10^-11.

• A)3.3 × 10^-2 M
• B)1.2 × 10^-4 M
• C)5.9 × 10^-5 M
• D)4.8 × 10^-11 M
• E)4.2 × 10^-7 M

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