How many oxygen atoms are in 6.3 moles of ethanol?

Question

im not sure which equation to use if you could please help me it would be greatly appreciate it.

Thank you very much.

Answer 1

Ethanol = C2H5OH

6.3 moles ethanol x (6.02 x 10^23 molecules ethanol / 1 mole ethanol) x (1 O atom / 1 molecule C2H5OH) = 3.8 x 10^24 O atoms

Answer 2

CH3CH2OH is the formula of ethanol

In 1 mole there are 2 moles of C , 6 moles of H and 1 mole of O

So in 6.3 moles of CH3CH2OH there are 2 x 6.3 = 12.6 moles of C , 6 x 6.3 = 37.8 moles of H and 1 x 6.3 = 6.3 moles of O