Chapter 20.9, Problem 20.14.1PE

Interpretation Introduction

Interpretation: The time required to deposit $1.00\text{ g}$ of chromium metal from an aqueous solution of ${\text{CrCl}}_{\text{3}}$ is to be calculated.

Concept introduction: The mass of $\text{Cr}\left(s\right)$ that is plated out by the electrolysis of the aqueous solution of ${\text{Cr}}^{3+}$ depends on the number of moles of electrons required for its formation. The time required to deposit given amount of metal is calculated by the formula,

$t=\frac{q}{I}$

To determine: The time required to deposit $1.00\text{ g}$ of chromium.