Question

How many moles of molecules are there in 16g of oxygen?

Answer 1

Answer:

1 mole = molecular mass of atom

oxygen has molecular mass of 16 gm/mol

so 16 gm oxygen has molarity 1 or is of 1 mole

Answer 2

16 gm or 5 mole of oxygen gas are 0.5×6.023×10^(23)=3.012×10^(23) molecules.

Therefore, 16gm of O[ oxygen ] will contain 1 mole of atoms.

The atomic mass of oxygen is 16 and therefore it will have 6.023×10^23 atoms.

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