Problem- for the diprotic weak acid h2a ka1 20 times 10-5

Question

Problem- For the diprotic weak acid H2A, Ka1 = 2.0 × 10-5 and Ka2 = 5.0 × 10-7.

Part 1) What is the pH of a 0.0750 M solution of H2A?

Part 2) What are the equilibrium concentrations of H2A and A2- in this solution?

Describe the solution of above question