Chapter 22, Problem 22.16P

Interpretation Introduction

(a)

Interpretation:

The density of hydrogen in TiH₂ needs to be determined and compared with the density of the liquid H₂ (0.070 g /cm³ ).

Concept introduction:

The density of a substance can be determined as follows:

$d=\frac{m}{V}$

Here, m is mass and V is volume.

Also, number of moles of a substance is related to mass and molar mass as follows:

$n=\frac{m}{M}$

Here, m is mass and M is molar mass.

Interpretation Introduction

(b)

Interpretation:

The volume of H₂ at STP required to form 1.00 cm³ of TiH₂ needs to be determined.

Concept introduction:

A balanced equation is the equation for a chemical reaction in which the number of atoms for every element in the reaction and the total charge are the same for both the reactants and the products.