How much is the empty space in 1 mole of Helium gas at STP if the radius of helium molecule is about 0.98 dot(A)?

How much is the empty space in 1 mole of Helium gas at STP if the radi

1.	How much is the empty space in 1 mole of Helium gas at STP if the radius of helium molecule is about 0.98 dot(A)?
Answer» SOLUTION :`=99.98%`