Q 2.16: The unit of length convenient on the atomic scale is known as an angstrom and is denoted by . The size of a hydrogen atom is about . What is the total atomic volume in of a mole of hydrogen atoms?
Radius of a Hydrogen atom = 0.5 = 0.5 x 10-10 m
Volume =
=
=
1 hydrogen mole contains hydrogen atoms.
The volume of 1 mole of hydrogen atom =
= .