Chapter 17, Problem 114AE

Interpretation Introduction

Interpretation:

The determination of the blood plasma level by the titration of a sample of blood with an acidic Potassium dichromate solution resulting in the production of green colored ${\text{Cr}}^{3+}$ is given. The mass percent of alcohol present in the given mass of blood plasma is to be calculated.

Concept introduction:

The mass percent is used to represent the contribution of an element in a given compound or a component in a given mixture. The mass percent is determined as,

$\text{Mass}\text{percent}=\frac{\text{Grams}\text{of}\text{solute}}{\text{Grams}\text{of}\text{solution}}\times 100$

To determine: The mass percent of alcohol present in the given mass of blood plasma by titrating against given volume of Dichromate of certain concentration.