Chapter 6, Problem 6.154QP

Interpretation Introduction

Interpretation:

A 10g sample containing mixture of ${\text{CH}}_{\text{4}}{\text{ and C}}_{\text{2}}{\text{H}}_{\text{4}}$ at $\text{25°C and 1 atm}$ to give Carbon dioxide and water.  If the reaction gives $\text{520 kJ}$ of heat, the percentage of mass has to be calculated.

Concept introduction:

The mass percentage of compound can be calculated by taking the calculated mass of the substance to the total mass of the sample whole multiplied by 100.

The mass percent can be calculated with formula,

$\text{Mass}\text{percent(in}\text{percentage)=}\frac{\text{Calculated}\text{mass(in}\text{grams)}}{\text{total}\text{mass(in}\text{grams)}}\text{×100}$