Chapter 16, Problem 98E

Interpretation Introduction

Interpretation: The equation in acidic solution is to be balanced. The volume of ${\text{K}}_2{\text{Cr}}_2{\text{O}}_7$ solution required to dissolve $\text{Cu}$ is to be determined.

Concept Introduction: Oxidation is the loss of electrons.

Reduction is the gain of electrons.

When oxidation and reduction simultaneously take place, then it is known as redox reaction.

Molarity is the ratio of number of moles of solute to litres of solution.

The expression of molarity $\left(\text{M}\right)$ is:

$\text{M}=\frac{\text{Moles solute}}{\text{L solution}}$