Can anyone help? Thanks in advance.

Weak acids dissociate and the concentrations of the acid and conjugate based depend on pH. a) (3 points) Dissolved carbon dioxide in the ocean affects the speciation of carbonic acid, bicarbonate, and carbonate ions. Using the chemical reaction and equilibrium constant below, calculate the pH of water if it contains the following carbonate to bicarbonate ratio: [HCO3][CO32]=9.3102.6HCO3CO32+H+K=1.01010.3pH=log[H+] *Hint: write out the equilibrium expression first b) (3 points) For the given information and chemical reaction below, determine the [H+] concentration. H2PO4H++HPO42K=[H2PO4][H+][HPO42]=6.2108pH= 4.9 c) (3 points) For the given information and chemical reaction in part ' b ', what is the ratio of hydrogen phosphate [HPO42] to dihydrogen phosphate [H2PO4]? d) (3 points) Plants take up hydrogen phosphate as a nutrient. What is the % fraction of hydrogen phosphate available to the plants? Consider the mass balance on phosphorus: CT,P=[HPO42]+ [H2PO4]=100