(a) Express the equilibrium constants for the carbonic acid reactions in terms of the concentrations of the reactants and products. H2O+CO2H2CO3=?H2CO3HCO3+H+=? (b) Combining the two equilibrium equations and defining pKlog, show that pH=pKlogKCH,O+log(CCO2CHCO1) (c) Based on equilibrium measurements, CH2CO3/CCO2=0.0032 and pK=3.6. Show that pH=6.1+log(CCO2CHCO2)