find the concentrations of H+, HCO3-, CO3 2- in a 0.025M in H2CO3 solutions

Answer 1

.......H2CO3 --> H^+ + HCO3^-
I......0.025.....0......0
C.......-x.......x......x
E....0.025-x.....x......x

Plug the E line into the Ka1 expression and solve for H^+ = HCO3^-

Then k2 = (CO3^2-)

Answer 2

Please send me the full solution