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02.02.2021 •
Chemistry
Potassium has three naturally occurring isotopes. According to one source of data, Potassium-39 (mass 38.9637 AMU) makes up 93.26%, potassium-40 (mass 39.9640 AMU) makes up just 0.01%, and potassium-41 (mass 40.9618 AMU) makes up 6.73%. What is the average atomic mass of potassium based on these relative abundances? Show all your work for credit, and express your final answer to 2 decimal places, and include the unit.
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