Question

calculate the number of molecules in 8 g of oxygen​

Answer 1

Hi ☺️☺️

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Molar mass of oxygen = 32 g.

So

32 g of oxygen = 1 mole.

1 g of oxygen = 1 / 32 mole

8 g of oxygen = 1 / 32 × 8

⇒ 1/ 4 moles

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Thanks !

Hope that this answer will help you ✌️

Answer 2

molecules weight of oxygen is 16 g

hope it helps you