Question

Calculate the number of molecules in 1 kg oxygen

Answer 1

Answer:

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Answer 2

Answers

1.The number of molecules present in 1 kg of oxygen is.

2.Avogadro number =

In 1 molecule of oxygen, there are 3.2 atoms, so the molecular mass of = 16×2 = 32 gm.

4.So 32 grams of =

So 1000 grams of = x1000)÷32.

= molecules.