Please answer the following questions relating to equilibrium and explain your reasoning. Part A) Suppose that you want to make an acidic buffer...

Please answer the following questions relating to equilibrium and explain your reasoning.

Part A) Suppose that you want to make an acidic buffer solution. You add 0.93 M Na2HPO4 to 1.23 M KH2PO4. If Ka (for H2PO4− ) = 6.2 × 10−8, what is the pH of this buffer solution?

a. 7.21

b. 7.33

c. 7.09

d. 1.23

Part B) Suppose that you have 25 L of components in a flask at 400 C. The components include 1.8 mol Cl2, 2.2 mol H2, and 1.0 mol HCl.