given-the-ka-values-for-a-polyprotic-acid-ka1-25-x-10-2-ka2-15-x-10-4-ka3-30-x-1

Question

Given the Ka values for a polyprotic acid: Ka1 = 2.5 x 10^-2, Ka2 = 1.5 x 10^-4, Ka3 = 3.0 x 10^-6, which hydrogen is the strongest acid?

Accepted Answer

The first hydrogen, with Ka1 = 2.5 x 10^-2.

Answer

All hydrogens have equal strength.

Answer

The third hydrogen, with Ka3 = 3.0 x 10^-6.

Answer

The second hydrogen, with Ka2 = 1.5 x 10^-4.