A 0.10-mol sample of a diprotic acid, H2A, is dissolved in 250 mL of water. Ka1 for this acid is 1.0 * 10-5 and Ka2 is 1.0 *10-10. Calculate the concentration of A2- in this solution.
A) 2.0 * 10-3 M
B) 4.0 * 10-6 M
C) 0.40 M
D) 1.0 * 10-10 M
E) 1.0 * 10-5 M
Correct Answer:
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