The ionization constant of lactic acid, CH3CH(OH)CO2H, MW=90.08 g/mol, an acid found in the blood after strenuous exercise, is 1.36 * 10^-4. If 37.5 g of lactic acid is used to make a solution with a volume of 516 mL, what is the pH of the solution? Report the pH rounded to the hundredths place.