Calculate the pH of Tioga lake in the Sierra Nevada mountains that has more than enough powdered limestone in it to saturate the water with Ca2+ and CO32 ions. The temperature is 25C, the carbon dioxide mixing ratio is 400ppmv, and the atmospheric pressure is 0.66 atm. To solve this, write out the set of equilibrium constant equations for bicarbonate, carbonate, and CaCO3. Construct an electroneutrality relation for this system and since this is a system occurring in Nature, the pH should be less than 10.3 (we must still state that [HCO3] [CO32] as a result)