determine ka for hydrogen sulfate ion hso4 − in a 0.10 m solution the acid is 29% ionized

Question

determine ka for hydrogen sulfate ion hso4 − in a 0.10 m solution the acid is 29% ionized

Answer 1

If HSO4- is 29% ionized, you can find the [H⁺] by multiplying 0.10 M *(0.29) = .029

Since [H⁺] = [SO₄^2-] = 0.029 and [HSO₄^-] = 0.1 - 0.029 = 0.071

Ka = [H⁺][SO₄^2-]/[HSO₄^-] = (0.029*0.029)/.071 = 0.012 = 1.2 x 10^-2