A buffer is created by dissolving 0.450 mol of NaC6H706 and 0.500 mols of HC6H7O6 in enough water to create 1.0L solution. The Ka of the ascorbic acid is 7.9x10-5
a) What is the original pH of the biffer?
b) What is the pH when 0.015 mol of HCL (aq) is added to the buffer?
c) What is the pH when 1.0g of solid NaOH is added to the buffer?