Mass percentage of hydrogen, carbon, nitrogen, and oxygen present in acetaminophen is to be calculated. Concept introduction: The molar mass of a substance is defined as the mass of one mole of a chemical entity. It is calculated as the summation of the product of number of atoms of each element and the atomic mass of the respective element. The mass percentage is defined as the ratio of the total mass of element to the molar mass of the compound. It is expressed as follows: Mass percent = ( total mass of element molar mass of compound ) ( 100 ) (1)

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Chapter 3, Problem 3.52P

Interpretation Introduction

Interpretation:

Mass percentage of hydrogen, carbon, nitrogen, and oxygen present in acetaminophen is to be calculated.

Concept introduction:

The molar mass of a substance is defined as the mass of one mole of a chemical entity. It is calculated as the summation of the product of number of atoms of each element and the atomic mass of the respective element.

The mass percentage is defined as the ratio of the total mass of element to the molar mass of the compound. It is expressed as follows:

Mass percent=(total mass of elementmolar mass ofcompound)(100) (1)

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