How many moles of oxygen (o) atoms are in a sample of 3.98 × 1023 atoms? 0.661 mol o 1.51 mol o 6.60 × 1022 mol o 2.40 × 1047 mol o

To find moles from any number of atoms, always divide by the constant called Avogadro's Number. This number is representative of the number of atoms or molecules in a mole of any substance and is equal to about .

So, for this problem, we take the number of atoms of oxygen and divide by Avogadro's Number. 



0.661 moles (after rounding)

Make sense?

True, the standard unit for volume is liters which can be represented by either a lower case "l" or a capital "l"

Deposition is the transition of matter going from gas to solid without passing through the liquid phase.a.) gas—-> solid