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 0.5 A what is the total atomic volume in m3 of a mole of hydrogen atoms?
Answer:
Radius of hydrogen atom, r = 0.5A = 0.5 × 10^–10 m
Volume of hydrogen atom =
1 mole of hydrogen contains 6.023 × 10^23 hydrogen atoms.
∴ Volume of 1 mole of hydrogen atoms = 6.023 × 10^23 × 0.524 × 10^–30
= 3.16 × 10^–7 m3
The size of a hydrogen atom is about 0.5 A what is the total atomic volume in m3 of a mole of hydrogen atoms?Answer:
Radius of hydrogen atom, r = 0.5A = 0.5 × 10^–10 m
Volume of hydrogen atom =
1 mole of hydrogen contains 6.023 × 10^23 hydrogen atoms.
∴ Volume of 1 mole of hydrogen atoms = 6.023 × 10^23 × 0.524 × 10^–30
= 3.16 × 10^–7 m3
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