Homework help

For the diprotic weak acid H2A, Ka1 = 2.2 × 10-5 M and Ka2 = 7.8 × 10-7 M. What is the pH of a 0.0650 M solution of H2A? What are the equilibrium concentrations of H2A and A2– in this solution? Thank you for the help!!

The connexus answers are 1. D 2. C 3. D

1.weight 2.yes,they would still be balanced because their masses would not change. 3.Bailee is incorrect.the mass of the objects stay the same but the weight will change. 4.m=dxv 5.density