Question

a)What is the pH of an aqueous solution made by combining 37.75 mL of a 0.3805 M sodium formate with 40.09 mL of a 0.3795 M solution of formic acid?

b)What is the pH of an aqueous solution made by combining 10.38 mL of a 0.1884 M hydrochloric acid with 42.76 mL of a 0.3314 M solution of ammonia?

c)In a titration of 47.63 mL of 0.3786 M ammonia with 0.3786 M aqueous nitric acid, what is the pH of the solution when 47.63 mL of the acid have been added?

d)In a titration of 36.24 mL of 0.3522 M nitrous acid with 0.3522 M aqueous sodium hydroxide, what is the pH of the solution when 36.24 mL of the base have been added?

e)What is the pH of an aqueous solution made by combining 39.52 mL of a 0.4415 M ammonium chloride with 48.59 mL of a 0.3181 M solution of ammonia to which 2.653 mL of a 0.0790 M solution of NaOH was added?