The unanswered chemistry question?

Question

What volume of nitrous oxide, N2O, has the same number of ATOMS as 10.0L of neon at the same temperature and pressure?

a. 1.67 L

b. 2.50 L

c. 3.33 L

d. 7.50L

e. 10.0L

THE ANSWER IS.......

C

Answer 1

Ne: 1 atom

N2O: 3 atoms

10.0 / 3 = 3.33 L

answer c.)

Equal volumes (at the same T & P) contain the same number of MOLES. Ne has 1/3 as many ATOMS as N2O

Answer 2

1 mole of all gases occupy the same volume at the same temp and pressure. So 10.0L of each gas will have the same number of MOLECULES as every other gas at same temp and pressure.

For this question they are asking for number of ATOMS.

One molecule of Ne has only one atom.

1 molecule of N2O has 3 atoms.

Therefore one third of the volume of N2O will have the same number af atoms as Ne.