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08-09-2020
Chemistry

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provide the setup and the answer of the question provided below.

Lithium has two isotopes. 6Li has an abundance of 7.42% and has a mass of 6.01 amu. If another isotpe, 7Li, has an abundance of 92.58% and a mass of 7.02 amu, please calculate the atomic mass of lithium. (Keep two digits after decimal in your answer)

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08-09-2020

Answer:

6.9

Explanation:

RAM= [tex]\frac{((7.42*6.01)+(92.58*7.02))}{(7.42+92.58_}[/tex]

=6.9

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