Chapter 13, Problem 13.76P

Interpretation Introduction

Interpretation:

The concentrations of ${\text{Ca}}^{2+}$ and ${\text{Mg}}^{2+}$ in $\text{ppm}$ are to be calculated.

Concept introduction:

The $\text{ppm}$ or parts per million is a concentration term that is defined as the mass of any substance divided by the mass of the solution, multiplied by ${10}^6$.

The formula to calculate the concentration of an ion in $\text{ppm}$ is as follows:

$\text{ppm}=\left(\frac{\text{mass}\text{of ion}}{\text{mass}\text{of}\text{solution}}\right){10}^6$ (1)