Chemistry
Chemistry, 02.12.2020 20:20, ASHCASH44

Three isotopes of element X have been discovered. Sixty percent exists at 42 amu, 30 percent weighs 45 amu and the last 10% weighs 48 amu. What is the atomic mass?

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Three isotopes of element X have been discovered. Sixty percent exists at 42 amu, 30 percent weighs...

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