Chapter 16, Problem 16.125QA

Interpretation Introduction

To find:

Answer the questions from a-e for the titration of sulphurous acid $\left(H_{2}S{O}_3\right)$ with $NaOH$.

a) How much more titrant (in mL) is required to reach the second equivalence point?

b) What is the $pH$ of the titration mixture after $7.50mL$ of titrant has been added?

c) What is the $pH$ of the titration mixture after a total of $22.50 mL$ of titrant has been added?

d) Identify the two most abundant ions in the titration reaction mixture at the first equivalence point.

e) Identify the two most abundant ions in the titration reaction mixture at the second equivalence point.