Chapter 15, Problem 25QAP

Interpretation Introduction

Interpretation:

The mass of each solute present in $285\text{g}$ of the solution that contains $5.00\text{\%}$ by mass $\text{NaCl}$ and $7.50\text{\%}$ by mass ${\text{Na}}_{\text{2}}{\text{CO}}_{\text{3}}$ is to be calculated.

Concept Introduction:

The mass percentage of a compound present in a solution is calculated by dividing the mass of the compound present in the solution by the total mass of the solution and then multiplying it by $100$. The formula for mass percentage is represented as,

$\text{mass}\text{\%}=\frac{\text{M}}{{\text{M}}_{\text{t}}}\times 100\text{\%}$

Where,

• $\text{M}$ represents the mass of the compound present in the solution.
• ${\text{M}}_{\text{t}}$ represents the total mass of solution.