Chapter 13.3, Problem 1RC

Interpretation Introduction

Interpretation: The response of given concentration units when solution is heated at ${\text{75}}^{\text{o}}\text{C}$ should be identified.

Concept introduction:

Molality$\left(m\right)$: The concentration for solutions is expressed in terms of molality. Molality is the number of moles of solute present in one kilogram of solvent. Molality is estimation of moles in relationship with solvent in the solution.

$\text{Molality (m) =}\frac{\text{Number}\text{of}\text{moles}\text{of}\text{solute}}{\text{kilograms}\text{of}\text{solvent}}$

Molarity (M): The concentration for solutions is expressed in terms of molarity. Molarity is number of moles of the solute present in liter of the solution.

$\text{Molarity = }\frac{\text{No}\text{. of moles of solute}}{\text{Volume of solution in L}}$

Mass: It is the quantitative measure of a substance. The amount of matter present in substance is expressed as mass. The $S.I.$ unit of mass is $kg$.

Volume: A quantity of the substance which occupies three dimensional spaces within the container. The formula used to determine volume is,

$\text{Volume =}\frac{\text{mass}}{\text{density}}$