What is the mass of 3.01 x 10^23 molecules of oxygen?

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asked Sep 19, 2017 154k views

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Felisha · Answer 1 · 2017-09-26T13:17:37+0000

Oxygen is gas. It has 2 O atoms. Atomic mass of 1 O atom is 16 amu. So molecular mass of O2 = 2 x 16 = 32 amu. Now, mass of 6.023 x 10 ^23 = 32 amu. Therefore mass of 3.01 x 10^23 = 32 x 3.01 x 10^23 / 6.023 x 10 ^23 = 15.99 = ~16 gm

What is the mass of 3.01 x 10^23 molecules of oxygen?

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