Chapter 12, Problem 114QRT

Interpretation Introduction

Interpretation:

Solid sample of benzoic acid is in equilibrium with aqueous solution of benzoic acid, with this a tiny amount of ${\text{D}}_{\text{2}}\text{O}$ is added and this mixture is allowed for constant temperature for several hours, after some benzoic acid solid is removed and analysed.  The removed sample contains a tiny quantity of $\text{D}$ and the formula is ${\text{C}}_{\text{6}}{\text{H}}_{\text{5}}\text{COOD}$.

In a second experiment, a tiny amount of ${}^{\text{18}}{\text{OH}}_{\text{2}}$ is added , after which some benzoic acid solid is removed and analysed.  The removed sample contains a tiny quantity of ${}^{\text{18}}\text{O}$ in the benzoic acid.

Explanation has to be given for the results obtained in the two experiments.