Chapter 4.13, Problem 1PPB

Interpretation Introduction

Interpretation:

The volume of NaOH solution, which neutralized by given mass of KHP is to be calculated.

Concept Introduction:

Acid-base titrations are useful in determining the concentration of an unknown acid or a base.

The concentration of unknown solution can be determined by titrating it with a standard solution, of a known concentration.

If volumes of standard and unknown solutions are known, the concentration of unknown solution can be estimated with the help concentration of standard solution.

The solution of a strong base like NaOH needs to be standardized as its concentration might become unstable over time. It can be standardized using KHP, which is available in a highly pure form.

The moles of a substance are expressed as: $n=\frac{m}{\text{M}}$

$\text{Molarity = }\frac{\text{moles }}{\text{Volume}}$.

So, volume of solution can be calculated as: $\text{Volume = }\frac{\text{moles}}{\text{Molarity}}$