Chapter 12, Problem 12.9YT

Interpretation Introduction

Interpretation:

The milligrams of nitrate present in $185\text{ L}$ of water with given concentration of nitrate is to be calculated.

Concept Introduction:

Molarity is defined as the number of moles of solute per liter of solution. Mathematically, molarity $\left(\text{M}\right)$ is calculated as:

$\text{Molarity}\left(\text{M}\right)=\frac{\text{Moles solute}}{\text{Liters solution}}$

The volume of solution should be in liters and the unit of molarity is $\text{M}$.

The relation between the numbers of moles $\left(n\right)$ and molar mass is: $n=\frac{m}{\text{molar mass}}$

Here, $m$ is mass.

The concentration of a solution in milligrams per liter is the ratio of milligram solute to liter solution.

The concentration of a solution in milligrams per liter is expressed as:

$\text{mg}/\text{L}=\frac{\text{milligram solute}}{\text{litres solution}}$