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If one mole of nitrogen molecules …

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If one mole of nitrogen molecules weighs 28 g, calculate the mass of one molecule of nitrogen in grams. 

  • 2 answers

Payal Singh 7 years, 3 months ago

Answer: The mass of 1 atom = Gram atomic mass of atom/ 6.022 × 1023

So, the mass of 1 atom of nitrogen = Gram atomic mass of nitrogen atom/ 6.022 × 1023 = 28g/ 6.022 × 1023 =

4.65 × 10-23 g

Naveen Sharma 7 years, 3 months ago

Ans. Molar mass of a substance is a mass of 6.023 X1023 molecules.

Molar mass of nitrogen molecule i.e N is 2 X14 = 28 g.

Thus 6.023 X 1023 molecules weigh = 28 g

1 molecule of nitrogen weighs = 28/6.02 X 1023 = 4.65 X 10-23 g

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