Pure water is carbonated by means of bubbling CO2 gas through it. Then it is bottled. If the air space in the bottle above the water contains only CO2 at a pressure of P=2.5atm, what is the equilibrium pH of the carbonated water. KH=0.0334Matm1 and K1=4.47107. Round to one decimal place. (a) 0.9 (b) 0.1 (c) 3.7 (d) 5.5 (e) 1.5