   # The total number of atoms present in a formula unit of Al 2 (SO 4 ) 3 is a. 15 b. 16 c. 17 d. no correct response ### General, Organic, and Biological C...

7th Edition
H. Stephen Stoker
Publisher: Cengage Learning
ISBN: 9781285853918

#### Solutions

Chapter
Section ### General, Organic, and Biological C...

7th Edition
H. Stephen Stoker
Publisher: Cengage Learning
ISBN: 9781285853918
Chapter 1.10, Problem 6QQ
Textbook Problem
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## The total number of atoms present in a formula unit of Al2(SO4)3 is a. 15 b. 16 c. 17 d. no correct response

Interpretation Introduction

Interpretation:

Total number of atoms that is present in a formula unit of Al2(SO4)3 has to be chosen from the given options.

Concept Introduction:

The composition of a chemical compound can be presented in a very precise was with the use of chemical formula.  Chemical formula uses chemical symbols of the elements that is present in the compound and numerical subscripts that represent how many number of atoms of each element is present in the compound.

### Explanation of Solution

Reason for correct option:

Given formula unit is Al2(SO4)3.  The total number of atoms can be found by summing up the subscript as shown below,

TotalNo.ofatomsinAl2(SO4)3 = 2+(1x3)+(4x3)

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