Chapter 13, Problem 81A

Interpretation Introduction

Interpretation:

The information required to solve a volume-mass problem that involves gases is to be written.

Concept introduction:

It is based on stochiometry concerns and parameters involved in ideal gas law.

Answer to Problem 81A

To solve a volume-mass problem, firstly equation should be balanced. Secondly information about mass or moles of one of the reactant or product should be known. Thirdly conditions of temperature and pressure should be specified for necessary calculations.

Explanation of Solution

A balanced chemical equation gives the quantitative relationship of volumes between various reactants and products. Thus it is necessary to balance a chemical equation before using relative gas volume relationships.

Further to apply Avogadro’s Law, one of the values-mass or moles of a reactant or product is required.

Then value of T and P helps to calculate variables involved in ideal gas for other reactants and products involved.