Question

An analytical chemist is titrating

208.8mL

of a

0.1700M

solution of aniline

C6H5NH2

with a

0.3700M

solution of

HNO3

. The

pKb

of aniline is

9.37

.Calculate the pH of the base solution after the chemist has added

59.7mL

of the

HNO3

solution to it.

Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of

HNO3

solution added.

Round your answer to

2

decimal places.

=pH

Answer 1