Consider a 0.10 M solution of a weak polyprotic acid (H2A) with the possible values of Ka1 and Ka2 given here.a. Ka1 = 1.0 * 10-4; Ka2 = 5.0 * 10-5b. Ka1 = 1.0 * 10-4; Ka2 = 1.0 * 10-5c. Ka1 = 1.0 * 10-4; Ka2 = 1.0 * 10-6Calculate the contributions to [H3O+] from each ionization step. At what point can the contribution of the second step be neglected?
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Consider a 0.10 M solution of a weak polyprotic acid (H2A) with the possible values of Ka1 and Ka2 given here.
a. Ka1 = 1.0 * 10-4; Ka2 = 5.0 * 10-5
b. Ka1 = 1.0 * 10-4; Ka2 = 1.0 * 10-5
c. Ka1 = 1.0 * 10-4; Ka2 = 1.0 * 10-6
Calculate the contributions to [H3O+] from each ionization step. At what point can the contribution of the second step be neglected?
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