Question

total number of molecules in 64 grams of oxygen​

Answer 1

The atomic mass of an oxygen atom is 16 grams.

The molecular mass of an oxygen molecule is 32 grams

Hence 64 / 32 = 2 mols.

Each mole contains 6.02 x 10 ^ 23 particles

So your answer is 12.04 x 10^23 molecules.

I hope this helps!

Answer 2

Explanation:

4 ( four) mole oxygen in 63 grams of oxygen