Calculate the pH of a pure sample of water that has come to equilibrium with air containing 560 ppm CO2. Notes: • Assume 1 atm pressure and 25°C • At 25°C, the Henry’s Law constant is KH = 3.38×10-2 M/atm • Only consider the first acid dissociation reaction, for which Ka1 = 4.47×10-7 at 25°C Tip: You will very likely need to use the quadr