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A pure copper penny contains approximately 3.0 × 1022 copper atoms. Use the definitions

Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro ISBN: 9780321910295 34

Solution for problem 24P Chapter 6

Introductory Chemistry | 5th Edition

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Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro

Introductory Chemistry | 5th Edition

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Problem 24P

A pure copper penny contains approximately 3.0 × 1022 copper atoms. Use the definitions in the previous problem to determine how many _______ of copper atoms are in a penny.

(a) Dozens

(b) Gross

(c) Reams

(d) Moles

Step-by-Step Solution:
Step 1 of 3

Solution 24P

We know that

1 mole of copper has 6.023*10^23 molecules

Then how many moles of molecules of copper present in 3.0*10^22

=6.023*10^23 /3.0*10^22*1

=2.007*1045 moles of copper atoms are in a penny.

Step 2 of 3

Chapter 6, Problem 24P is Solved
Step 3 of 3

Textbook: Introductory Chemistry
Edition: 5
Author: Nivaldo J Tro
ISBN: 9780321910295

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A pure copper penny contains approximately 3.0 × 1022 copper atoms. Use the definitions