Question

Only two isotopes of copper occur naturally: 63 Cu (atomic mass $=62.9296$ amu; abundance 69.17$\%$ and 65 (atomic mass $=64.9278$ amu; abundance 30.83$\%$ ). Calculate the atomic weight (average atomic mass) of copper.

Name: only two isotopes of copper occur naturally 63 cu atomic mass 629296 amu abundance 6917 and 65 atomic mass 649278 amu abundance 3083 calculate the atomic weight average atomic mass of copper 4
Uploaded: 2021-08-26T00:51:06-08:00
Duration: 1 min 33 s
Channel: Bryce Werts
Description: only two isotopes of copper occur naturally 63 cu atomic mass 629296 amu abundance 6917 and 65 atomic mass 649278 amu abundance 3083 calculate the atomic weight average atomic mass of copper 4

          Only two isotopes of copper occur naturally: 63 Cu (atomic mass $=62.9296$ amu; abundance 69.17$\%$ and 65 (atomic mass $=64.9278$ amu; abundance 30.83$\%$ ). Calculate the atomic weight (average atomic mass) of copper.

Added by Tamara G.

Chemistry The Central Science

Theodore L. Brown 14th Edition

Chapter 2

Instant Answer

Solved by Expert Bryce Werts

08/26/2021

Step 1

For isotope 63 Cu: $62.9296 \text{ amu} \times 0.6917 = 43.54 \text{ amu}$ For isotope 65 Cu: $64.9278 \text{ amu} \times 0.3083 = 20.04 \text{ amu}$ Show more…

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Only two isotopes of copper occur naturally: 63 Cu (atomic mass $=62.9296$ amu; abundance 69.17$\%$ and 65 (atomic mass $=64.9278$ amu; abundance 30.83$\%$ ). Calculate the atomic weight (average atomic mass) of copper.