given-the-ka-values-for-a-polyprotic-acid-ka1-10-x-10-3-ka2-10-x-10-5-ka3-10-x-1

Question

Given the Ka values for a polyprotic acid: Ka1 = 1.0 x 10^-3, Ka2 = 1.0 x 10^-5, Ka3 = 1.0 x 10^-7, which hydrogen is the strongest acid?

Accepted Answer

The first hydrogen, with Ka1 = 1.0 x 10^-3.

Answer

All hydrogens have equal strength.

Answer

The third hydrogen, with Ka3 = 1.0 x 10^-7.

Answer

The second hydrogen, with Ka2 = 1.0 x 10^-5.