Question

If 1.00 mol of He occupies 22.4 L at STP, what volume will 1.00 g of He occupy under
condition?
A) 22.4L
B) 5.60 L
10.2 L
D) 8.16 L​

Answer 1

1.00 g of He occupy  (B) 5.60 L  

Explanation:

molecular weight of helium is 4.002 g/mol

1 g of He means  : 1 / 4  moles or 0.25 moles

1 mol occupies = 22.4 L

0.25 mol will occupy = 22.4 * 0.25

                                  = 5.60L