What Is the Concentration of HCO₃^- in a 0

question 40

Multiple Choice

What is the concentration of HCO₃^- in a 0.010 M solution of carbonic acid,H₂CO₃? For carbonic acid,Ka₁ = 4.2 × 10^-7 and Ka₂ = 4.8 × 10^-11.

• A)6.5 × 10^-5 M
• B)1.0 × 10^-2 M
• C)3.2 × 10^-5 M
• D)4.8 × 10^-11 M
• E)4.2 × 10^-7 M