If 16 g of oxygen contains …
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Posted by Pratham Srivastav 7 years, 3 months ago
- 2 answers
Payal Singh 7 years, 3 months ago
Ans. The mass of 1 atom = Gram atomic mass of atom/ 6.022 × 1023
So, the mass of 1 atom of oxygen = Gram atomic mass of oxygen atom/ 6.022 × 1023 = 16g/ 6.022 × 1023 =
2.66 × 10-23 g
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Naveen Sharma 7 years, 3 months ago
Ans.
Molar mass of a substance is a mass of 6.023 X1023 molecules.
Molar mass of Oxygen molecule i.e N is 2 X 8 = 16 g.
Thus 6.023 X 1023 molecules weigh = 16 g
1 molecule of Oxygen weighs = 16/6.02 X 1023 = 2.66 X 10-23 g
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