we-are-given-a-diprotic-acid-h2a-it-has-a-ka1-4-2x10-6-and-ka2-6-8x10-9calculate

Question

We are given a diprotic acid H₂A. It has a K_a₁ = 4.2x10^-6 and K_a2 = 6.8x10^-9

Calculate the pH of 0.0700 M solution of H₂A. Calculate the concentrations of H₂A and A^2- for this solution at equilibrium

Accepted Answer

pH = 3.27, [H₂A] = 0.0695 M, [A^-2] = 6.80x10^-9 M

Answer

pH = 1.15, [H₂A] = 6.80x10^-9 M, [A^-2] = 4.20x10^-9 M

Answer

pH = 1.15, [H₂A] = 4.20x10^-9 M, [A^-2] = 0.0695 M

Answer

pH = 3.27, [H₂A] = 6.80x10^-9 M, [A^-2] = 0.0695 M