Chapter 6, Problem 6.139CHP

(a)

Interpretation Introduction

Interpretation:

The metal in the reaction has to be identified.

Concept introduction:

Number of moles:

One mole is the equal to number of atoms in $\text{12g}$ of carbon $\text{-12}$ which is equal to $\text{6}{\text{.023×10}}^{\text{23}}$ atoms. This is also known as Avogadro number.

Number of moles can be calculated as:

Number of moles = $\frac{\text{given}\text{mass of the element}}{\text{atomic}\text{mass}\text{of}\text{element}}$

Number of grams = $\text{number of moles}\text{×}\text{molecular}\text{mass}$ number of moles

(b)

Interpretation Introduction

Interpretation:

The number of liters of ${\text{CO}}_{\text{2}}$ were produced if the density of ${\text{CO}}_{\text{2}}$ is $\text{1}\text{.799}\text{g/L}$ has to be calculated.

Concept introduction:

Number of moles:

One mole is the equal to number of atoms in $\text{12g}$ of carbon $\text{-12}$ which is equal to $\text{6}{\text{.023×10}}^{\text{23}}$ atoms. This is also known as Avogadro number.

Number of moles can be calculated as:

Number of moles = $\frac{\text{given}\text{mass of the element}}{\text{atomic}\text{mass}\text{of}\text{element}}$

Number of liters = number of moles $\text{×}$ atomic mass of the element $\text{×}$ density