6. You have 40.00mL of a 0.300M aqueous solution of the weak base C6H5NH2(Kb=4.001010). This solution will be titrated with 0.300MHCl. (a) How many mL of acid must be added to reach the equivalence point? (b) What is the pH of the solution before any acid is added? (c) What is the pH of the solution after 10.00mL of acid has been added? (d) What is the pH of the solution at the equivalence point of the titration? (e) What is the pH of the solution when 45.00mL of acid has been added