To calculate the pH of a solution with a concentration of 0.01 M hydrochloric acid HCl , we can use the formula:pH = -log10[H+]Since HCl is a strong acid, it will dissociate completely in water, meaning that the concentration of H+ ions will be equal to the concentration of HCl. In this case, the concentration of H+ ions is 0.01 M.Now we can plug this value into the formula:pH = -log10 0.01 pH = - -2 pH = 2So, the pH of a solution with a concentration of 0.01 M hydrochloric acid is 2.