# Convert 12 G of Oxygen Gas into Moles. - Science

Short Note

Convert 12 g of oxygen gas into moles.

#### Solution

Gram molecular mass of O2 = 32 g

mass of oxygen gas given = 12 g

Therefore, 32 g of O2 = 1 mole of O2

So, 12 g of O2 = 12/32 moles of O2

Hence, 12 g of oxygen contains 0.375 moles of oxygen.

Concept: Molecular Mass
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#### APPEARS IN

Lakhmir Singh Class 9 Chemistry - Science Part 2
Chapter 3 Atoms and Molecules
Very Short Answers | Q 7 | Page 172