Chemistry: Matter and Change
Chemistry: Matter and Change
1st Edition
ISBN: 9780078746376
Author: Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher: Glencoe/McGraw-Hill School Pub Co
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Chapter 22, Problem 9STP
Interpretation Introduction

Interpretation:

The mass of one molecule of barium hexafluorosilicate (BaSiF6) needs to be determined.

Concept introduction:

In 1 mol of a substance there are 6.023×1023 units. Also, number of moles is related to mass and molar mass as follows:

n=mM

Here, m is mass and M is molar mass.

Expert Solution & Answer
Check Mark

Answer to Problem 9STP

Correct Answer: Option (a) is correct.

Explanation of Solution

Reason for correct options:

The given substance is barium hexafluorosilicate (BaSiF6).

The molar mass can be calculated from atomic mass of Ba, Si and F atoms.

M=137.327 g/mol+28.0855 g/mol+6(19 g/mol)=279.4125 g/mol

Now, in 1 mol there are 6.023×1023 molecules of BaSiF6 thus, 6.023×1023 molecules of BaSiF6 has 279.4125 g of mass.

Therefore, the mass of 1 molecule will be:

m=279.4125 g6.023×1023=4.64×1022g

Therefore, mass of 1 molecule of BaSiF6 is 4.64×1022g. The correct option will be (a).

Conclusion

Reason for incorrect options:

After calculations, mass of 1 molecule of BaSiF6 is 4.64×1022g therefore; options (b), (c) and (d) are incorrect.

Chapter 22 Solutions

Chemistry: Matter and Change

Ch. 22.2 - Prob. 11SSCCh. 22.2 - Prob. 12SSCCh. 22.2 - Prob. 13SSCCh. 22.3 - Prob. 14SSCCh. 22.3 - Prob. 15SSCCh. 22.3 - Prob. 16SSCCh. 22.3 - Prob. 17SSCCh. 22.4 - Prob. 18SSCCh. 22.4 - Prob. 19SSCCh. 22.4 - Prob. 20SSCCh. 22.4 - Prob. 21SSCCh. 22.5 - Prob. 22SSCCh. 22.5 - Prob. 23SSCCh. 22.5 - Prob. 24SSCCh. 22.5 - Prob. 25SSCCh. 22 - Prob. 26ACh. 22 - Prob. 27ACh. 22 - Prob. 28ACh. 22 - Prob. 29ACh. 22 - Prob. 30ACh. 22 - Prob. 31ACh. 22 - Prob. 32ACh. 22 - Prob. 33ACh. 22 - Prob. 34ACh. 22 - Prob. 35ACh. 22 - Prob. 36ACh. 22 - Prob. 37ACh. 22 - Prob. 38ACh. 22 - Prob. 39ACh. 22 - Prob. 40ACh. 22 - Prob. 41ACh. 22 - Prob. 42ACh. 22 - Prob. 43ACh. 22 - Prob. 44ACh. 22 - Prob. 45ACh. 22 - Prob. 46ACh. 22 - Prob. 47ACh. 22 - Prob. 48ACh. 22 - Prob. 49ACh. 22 - Prob. 50ACh. 22 - Prob. 51ACh. 22 - Prob. 52ACh. 22 - Prob. 53ACh. 22 - Prob. 54ACh. 22 - Prob. 55ACh. 22 - Prob. 56ACh. 22 - Prob. 57ACh. 22 - Prob. 58ACh. 22 - Prob. 59ACh. 22 - Prob. 60ACh. 22 - Prob. 61ACh. 22 - Prob. 62ACh. 22 - Prob. 63ACh. 22 - Prob. 64ACh. 22 - Prob. 65ACh. 22 - Prob. 66ACh. 22 - Prob. 67ACh. 22 - Prob. 68ACh. 22 - Prob. 69ACh. 22 - Prob. 70ACh. 22 - Prob. 71ACh. 22 - Prob. 72ACh. 22 - Prob. 73ACh. 22 - Prob. 74ACh. 22 - Prob. 75ACh. 22 - Prob. 76ACh. 22 - Prob. 77ACh. 22 - Prob. 78ACh. 22 - Prob. 79ACh. 22 - Prob. 80ACh. 22 - Prob. 81ACh. 22 - Prob. 82ACh. 22 - Prob. 83ACh. 22 - Prob. 84ACh. 22 - Prob. 85ACh. 22 - Prob. 1STPCh. 22 - Prob. 2STPCh. 22 - Prob. 3STPCh. 22 - Prob. 4STPCh. 22 - Prob. 5STPCh. 22 - Prob. 6STPCh. 22 - Prob. 7STPCh. 22 - Prob. 8STPCh. 22 - Prob. 9STPCh. 22 - Prob. 10STPCh. 22 - Prob. 11STPCh. 22 - Prob. 12STPCh. 22 - Prob. 13STPCh. 22 - Prob. 14STPCh. 22 - Prob. 15STPCh. 22 - Prob. 16STPCh. 22 - Prob. 17STPCh. 22 - Prob. 18STP
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