Chapter 10, Problem 97A

Interpretation Introduction

Interpretation:

The total number of metal ions in the mixture needs to be determined.

Concept introduction:

If two solutions are mixed, the total number of ions will be sum of ions in the two solutions. From number of moles, number of ions can be determined using the Avogadro’s number.

Answer to Problem 97A

The total number of metal ions $2.288\times {10}^{23}$.

Explanation of Solution

The total number of metal ions,

$\begin{array}{l}=\left(0.25+0.13\right)\text{ mol}\\ \text{=0}\text{.38 mol}\\ \text{=0}\text{.38}\times \text{6}\text{.022}\times {\text{10}}^{23}\\ =2.288\times {10}^{23}\end{array}$