Question

calculate the number of molecules in 5.5 moles of 02 ( atomic mass of oxygen is 16u )
pls help i will mark as brainiest and i will give a thanks

Answer 1

1 mol of O2 contains 6.023 X 10^23 molecules of oxygen.

so, 5.5 mol of O2 contains 5.5 X 6.023 X 10^23 molecules of oxygen.

33.1265 X 10^23 molecules of O2 will be present.