   Chapter 2, Problem 73PS

Chapter
Section
Textbook Problem

What mass is represented by 0.0255 mol of each of the following compounds?(a) C3H7OH, 2-propanol, rubbing alcohol(b) C11H16O2, an antioxidant in foods, also known as BHA (butylated hydroxyanisole)(c) C9H8O4, aspirin(d) (CH3) 2CO, acetone, an important industrial solvent

(a)

Interpretation Introduction

Interpretation:

For the given amounts of molecules in moles, the mass conversions are needed to be calculated.

Concept introduction:

Molar mass of 2-propanol, BHA (butylated hydroxyanisole), aspirin and acetone are 60.09, 180.24, 180.157 and 58.08 .

• Conversion formula for mass of an atom into number moles,

Numberofmoles×Molarmass=Massingrams

Explanation

The amount of 2-propanol is given as 0.0255mol.

Molar mass of 2-propanol is 60.09g/mol.

Conversion formula for number moles of an atom into mass in grams,

Numberofmoles×Molarma

(b)

Interpretation Introduction

Interpretation:

For the given amounts of molecules in moles, the mass conversions are needed to be calculated.

Concept introduction:

Molar mass of 2-propanol, BHA (butylated hydroxyanisole), aspirin and acetone are 60.09, 180.24, 180.157 and 58.08 .

• Conversion formula for mass of an atom into number moles,

Numberofmoles×Molarmass=Massingrams

(c)

Interpretation Introduction

Interpretation:

For the given amounts of molecules in moles, the mass conversions are needed to be calculated.

Concept introduction:

Molar mass of 2-propanol, BHA (butylated hydroxyanisole), aspirin and acetone are 60.09, 180.24, 180.157 and 58.08 .

• Conversion formula for mass of an atom into number moles,

Numberofmoles×Molarmass=Massingrams

(d)

Interpretation Introduction

Interpretation:

For the given amounts of molecules in moles, the mass conversions are needed to be calculated.

Concept introduction:

Molar mass of 2-propanol, BHA (butylated hydroxyanisole), aspirin and acetone are 60.09, 180.24, 180.157 and 58.08 .

• Conversion formula for mass of an atom into number moles,

Numberofmoles×Molarmass=Massingrams

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