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.
Posted by Pratham Srivastav 8 years, 5 months ago
- 2 answers
Naveen Sharma 8 years, 5 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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Payal Singh 8 years, 5 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
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