Question

How many moles of O2 are there in 1.20 x 10^22 oxygen molecules ?​

Answer 1

Explanation:

1 mole of gas contain 6x10^23

molecules

given the no of molecules =1.2x10^22

then the no of moles present equal to

1.2x10^22/6x10^23

=0.02 moles

Hope it helps...