17-8 Acid anhydrides

What is the pH of the solution if 0.05mol of SO₃ is dissolved in the water to make 1.0L solution? (SO₃ is very soluble.)

How many grams of SO₃ is needed to make a 1.0L solution that has a pH=1.0?

What is the pH of the solution if 0.002mol of CO₂ is dissolved in the water to make 1.0L solution at 25^oC and 0.1atm? (The solubility of CO₂ in pure water at 25^oC and 0.1atm is 0.0037M.) Ka₁=4.3x10^-7, Ka₂ = 5.6x10^-11

What is the concentration of CO₃^2- ion in the solution in Q4?

How many grams of CO₂ is needed at 25^oC and 0.1atm to make a 1.0L solution that has a pH=4.50?