Chapter 11, Problem 11.127CHP

Interpretation Introduction

Interpretation:

The mass percentage of ${\text{KCl, KNO}}_{\text{3}}\text{, and Ba}{\left({\text{NO}}_{\text{3}}\right)}_{\text{2}}$ in the given mixture has to be calculated.

Concept Introduction:

Osmotic pressure

The additional pressure that has to be given to the solution in order to stop osmosis is called as osmotic pressure.  Osmosis is the run of solvent into a solution by means of semipermeable membrane.

Osmotic pressure can be calculated by the equation,

$\Pi \text{=}\text{MRT}$

Where,

$\begin{array}{l}\Pi \text{=Osmotic}\text{pressure}\\ \text{M=}\text{Molarity}\text{of}\text{solution}\\ \text{R=Gas}\text{law}\text{constant}\\ \text{T=Temperature}\end{array}$

Mass percentage:

The mass percentage of a compound can be defined as the ratio taken by the calculated mass to the total mass of a compound by 100.  It can be given by the formula

$\text{mass}\text{percentage=}\frac{\text{Calculated}\text{mass}}{\text{Total}\text{mass}}\text{×100}$