Surface water in an open area of the Atlantic Ocean near Norway has an alkalinity of 2430 mol L1 and a total carbonate concentration of 2.34 103 mol L1. Calculate the concentrations of HCO3- and CO32- , and also the pH of this sea water. The present pCO2 is 41.1 Pa. The KH for CO2 in seawater at 25 oC and salinity of 35 is 2.81 x 10-7 mol kg-1 Pa-1, and the Ka1 is 1.849 x 10-6