A 0.942 M sample of carbonic acid, H2CO3, has a measured hydronium ion concentration of 6.36 ´ 10–4 M. Calculate the acid-ionization constant of carbonic acid. The equilibrium equation is:

H2CO3(aq) + H2O(l) <--><--> H3O+(aq) + HCO-3(aq)

1 answer

See your original post.