Question

The mass of 120 molecules of X2C4 is 9127.2 amu. Identify the unknown atom, X, by finding the atomic mass. The atomic mass of C is 12.01 amu/atom

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Tiffany

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72 Answers

Let the mass of atom X = m amu/atom
as per question
2m+(4x12.01)=9127.2/120
So m= 14.01 amu/atom

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