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# Ideal gas equation problem. watch

1. Hi,

I'm having some trouble finishing this problem off.

I've used the ideal gas equation to find V/n = 0.0247 m^3 per mol. However, I'm confused as to how to get m^3 per atom/molecule correctly from this.

I thought you multiplied by the Avagadro's number but you divide through by it.

Please could someone explain why this is, thanks
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2. Ideal gas problem.docx (244.3 KB, 27 views)
3. (Original post by VioletPhillippo)
Hi,

I'm having some trouble finishing this problem off.

I've used the ideal gas equation to find V/n = 0.0247 m^3 per mol. However, I'm confused as to how to get m^3 per atom/molecule correctly from this.

I thought you multiplied by the Avagadro's number but you divide through by it.

Please could someone explain why this is, thanks
0.0247m^3 per mole

is the same as saying

0.0247m^3 per 6.02x10^23 atoms/molecules

so if that many molecules occupy 0.0247m^3, then one molecule must occupy 1/6.02x10^23 of that.

just think, if you multiply though my avagadros number you're basically saying 1 molecule occupies 6.02x10^23 time the volume of an entire mole of molecules, and that makes no sense!

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