Chapter 3, Problem 115AE

Interpretation Introduction

Interpretation: The increasing order of hydrogen atoms contained in $\text{119}\text{g}$ of samples of phosphine, water, hydrogen sulphide and hydrogen is to be stated.

Concept introduction: The atom count of a particular element in sample depends upon the sample’s amount. The amount when given in terms of mass can easily be transformed to moles. As per mole concept, number of particles acquiring on mole quantity of compound is given be $N_{\text{A}}$ (Avogadro’s number) which has value equal to $6.022\times {10}^{23}{\text{mol}}^{-1}$ .