Chapter 5, Problem 174CP

Interpretation Introduction

Interpretation: It is given that, when element ${\text{M}}_{\text{2}}{\text{S}}_{\text{3}}\text{(s)}$ is heated in air to produce ${\text{MO}}_2\text{(s)}$ then mass of ${\text{M}}_{\text{2}}{\text{S}}_{\text{3}}\text{(s)}$ decreases. The average atomic mass of M is to be calculated.

Concept introduction: The molar mass of any compound can be calculated by adding of atomic weight of individual atoms present in it.

To determine: The average atomic mass of M.