17-5 Polyprotic Acids

^1. What is the pH of a 0.002M solution of H₂CO₃? Ka₁=4.3x10^-7,

Ka₂ = 5.6x10^-11

2. What is the concentration of CO₃^2- ion in the solution in Q1?

3. What is the pH of a 0.05M of sulfurous acid (H₂SO₃)? Ka₁=1.7x10^-2,

Ka₂=6.4x10^-8

4. What is the concentration of SO₃^2- ion in the solution in Q3?

5. What is the concentration of a sample solution of H₂CO₃ that has a pH = 4.50?