In aqueous solution the ionization constants for carbonic acid are K1 = 4.2 x 10–7 and K2 = 4.8 x 10–11 Select the correct statement for a saturated 0.034 M solution of the carbonic acid.
(1) The concentration of CO32- is 0.034 M.
(2) The concentration of CO32- is greater than that of HCO3- .
(3) The concentration of H+ and HCO3- are approximately equal.
(4) The concentration of H+ is double that of CO32- .