Chapter 8, Problem 116AP

Interpretation Introduction

(a)

Interpretation:

The number of molecules present in 3.45 g of ${\text{C}}_{\text{6}}{\text{H}}_{\text{12}}{\text{O}}_{\text{6}}$ should be calculated.

Concept Introduction:

According to Avogadro’s number, one mole of a compound contains $6.023\times {10}^{23}$ molecules.

Number of moles of a compound is calculated by dividing the given mass of the compound by its molar mass.

$\mathrm{Moles<mo>=</mo><mfrac><mrow><mtext>M</mtext><mtext>a</mtext><mtext>s</mtext><mtext>s</mtext></mrow><mrow><mtext>M</mtext><mtext>o</mtext><mtext>l</mtext><mtext>a</mtext><mtext>r</mtext><mtext>M</mtext><mtext>a</mtext><mtext>s</mtext><mtext>s</mtext></mrow></mfrac>}$.

Interpretation Introduction

(b)

Interpretation:

The number of molecules present in 3.45 moles of ${\text{C}}_{\text{6}}{\text{H}}_{\text{12}}{\text{O}}_{\text{6}}$ should be calculated.

Concept Introduction:

According to Avogadro’s number, one mole of a compound contains $6.023\times {10}^{23}$ molecules.

Interpretation Introduction

(c)

Interpretation:

The number of molecules present in 25 g of ${\text{ICl}}_{\text{5}}$ should be calculated.

Concept Introduction:

According to Avogadro’s number, one mole of a compound contains $6.023\times {10}^{23}$ molecules.

Number of moles of a compound is calculated by dividing the given mass of the compound by its molar mass.

$\text{Moles}=\frac{\text{Mass}}{\text{MolarMass}}$.

Interpretation Introduction

(d)

Interpretation:

The number of molecules present in 1g of ${\text{B}}_{\text{2}}{\text{H}}_{\text{6}}$ should be calculated.

Concept Introduction:

According to Avogadro’s number, one mole of a compound contains $6.023\times {10}^{23}$ molecules.

Number of moles of a compound is calculated by dividing the given mass of the compound by its molar mass.

$\text{Moles}=\frac{\text{Mass}}{\text{MolarMass}}$.

Interpretation Introduction

(e)

Interpretation:

The number of molecules present in 1.05 mmol of $\text{Al}{\left({\text{NO}}_{\text{3}}\right)}_{\text{3}}$ should be calculated.

Concept Introduction:

According to Avogadro’s number, one mole of a compound contains $6.023\times {10}^{23}$ molecules.