Explain how to determine the average atomic mass from knowing the percent abundance of isotopes

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22-03-2019
Chemistry

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Explain how to determine the average atomic mass from knowing the percent abundance of isotopes

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emmastone2256 emmastone2256 · Answer 1 · 2019-03-22T15:00:22+01:00

emmastone2256 emmastone2256

22-03-2019

The chlorine isotope with 18 neutrons has an abundance of 0.7577 and a mass number of 35 amu. To calculate the average atomic mass, multiply the fraction by the mass number for each isotope, then add them together.

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