Chapter 3, Problem 3.59QE

(a)

Interpretation Introduction

Interpretation:

The molar mass of ${\text{ZnBr}}_{\text{2}}$ has to be given.

Concept Introduction:

The molar mass (M) of any atom, molecule or compound is the mass (in grams) of one mole of the substance.  The molar mass of an element is numerically equal to its atomic mass, but in units of grams per mole ($\text{g/mol}$ ) rather than $\text{u}$.  The molar mass of a molecular substance is numerically equal to its molar mass, also expressed in units of grams per mole ($\text{g/mol}$).  The molar mass of ionic compound is the formula mass expressed in grams per mole.

(b)

Interpretation Introduction

Interpretation:

The molar mass of ${\text{K}}_{\text{2}}{\text{CrO}}_{\text{4}}$ has to be given.

Concept Introduction:

Refer to part a.

(c)

Interpretation Introduction

Interpretation:

The molar mass of $\text{BaS}$ has to be given.

Concept Introduction:

Refer to part a.