teirrasayers teirrasayers

18-10-2022
Chemistry

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The precise mass of 85X is 84.912 amu, and 72.17% of all atoms have that mass. The precise mass of 87X is 86.909 amu, and 27.83% of all atoms have that mass. Show the calculation to determine the average atomic mass for element X. Include a label on your answer.

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