   # Calculate the formula mass for each compound: a . CO b . CO 2 c . C 6 H 14 d . HCl ### Chemistry In Focus

7th Edition
Tro + 1 other
Publisher: Cengage Learning,
ISBN: 9781337399692

#### Solutions

Chapter
Section ### Chemistry In Focus

7th Edition
Tro + 1 other
Publisher: Cengage Learning,
ISBN: 9781337399692
Chapter 4, Problem 29E
Textbook Problem
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## Calculate the formula mass for each compound: a .  CO b .  CO 2 c .  C 6 H 14 d .  HCl

Interpretation Introduction

Interpretation:

The formula mass for each of the given compounds is to be calculated.

Concept Introduction:

The characteristic mass of a compound is considered to be the formula mass of that compound, which is obtained by adding the atomic masses of all the atoms present in the formula unit of the compound.

A set of chemical symbols represents the elements that exist in a compound.

### Explanation of Solution

a) CO

The formula mass of CO is calculated by adding the atomic masses of carbon and oxygen atoms, as follows:

formula massof CO=(12.01amu+16.00amu)=28.01amu

Therefore, the formula mass of CO is 28.01 amu.

b) CO2

The formula mass of CO2 is calculated by adding the atomic masses of carbon and oxygen atoms, as follows:

formula massof CO2=(12.01amu+2(16.00amu))=(12.01amu+32.00amu)=44.01amu

Therefore, the formula mass of CO2 is 44.01 amu

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