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Solved: Copper has two naturally occurring isotopes. Cu-63 has a mass of 62.939 amu and

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

Solution for problem 106P Chapter 4

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 106P

Problem 106P

Copper has two naturally occurring isotopes. Cu-63 has a mass of 62.939 amu and relative abundance of 69.17%. Use the atomic weight of copper to determine the mass of the other copper isotope.

Step-by-Step Solution:

Solution

 

Step 1

 

To calculate the atomic weight, the atomic weight of each isotope is multiplied by its percent abundance (expressed as a decimal). Then the results are added together.

 

i.e. atomic mass=sum of ((isotopic abundance) (atomic mass)-----(1)

Atomic mass of the element copper = 63.5amu

Atomic mass of first isotope=62.939amu                        

Relative abundance=69.17%

                 

Relative abundance of second isotope=100-69.17=30.83%

Atomic mass of second isotope is to be found  .Let it be x

Substituting the given values in -(1)

63.5amu=   62.939amu 0. 69+30.83x

x==20/0.308=64.93 amu

Mass of the isotope will be 64.93 amu

 

Step 2 of 1

Chapter 4, Problem 106P is Solved
Textbook: Introductory Chemistry
Edition: 5
Author: Nivaldo J Tro
ISBN: 9780321910295

Introductory Chemistry was written by and is associated to the ISBN: 9780321910295. The full step-by-step solution to problem: 106P from chapter: 4 was answered by , our top Chemistry solution expert on 05/06/17, 06:45PM. This full solution covers the following key subjects: copper, mass, abundance, AMU, determine. This expansive textbook survival guide covers 19 chapters, and 2046 solutions. This textbook survival guide was created for the textbook: Introductory Chemistry, edition: 5. The answer to “Copper has two naturally occurring isotopes. Cu-63 has a mass of 62.939 amu and relative abundance of 69.17%. Use the atomic weight of copper to determine the mass of the other copper isotope.” is broken down into a number of easy to follow steps, and 33 words. Since the solution to 106P from 4 chapter was answered, more than 651 students have viewed the full step-by-step answer.

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Solved: Copper has two naturally occurring isotopes. Cu-63 has a mass of 62.939 amu and