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The molecular mass of sodium oxide (Na2O) is

Theresa Perry

in Physics

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Blair Lewis on January 6, 2019

The answer is 62 or. The molecular mass of a molecule (Mr) is the sum of the atomic masses (Ar) of its elements. Ar(Na) = 23 u. Ar(O) = 16 u. Therefore, the molecular mass of sodium oxide is 62 or: Mr(Na2O) = 2 * Ar(Na) + Ar(O) = 2 * 23 u + 16 u = 46 + 16 = 62 u.


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