Chem - Volume of an atom question. Watch

Glee
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NEVERMIND. SOLVED

Hi, I'm stuck on an AS chem Q:

You are to calculate the percentage of the volume occupied by the atoms themselves in one mole or argon at RTP.

i.) Use the data booklet to calculate the volume of one atom of argon [V=4/3PIEr^3]
ANS:0.192nm GOT THIS.
ii.) Use your answer to caclculate the volume of one mole or argon atoms. ANS:1.78 x 10^-2 dm3


iii.) What percentage of 24dm3 is occupied by the atoms themselves? ANS: 0.074%


Data booklet: http://docs.google.com/viewer?a=v&q=...C978dkpsie9G-Q

Help is very much appreciated. Please explain your reasoning.
Ty.

NEVERMIND. SOLVED
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