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stuck on a science question

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Don1
 
Reply Sat 9 Apr, 2005 10:25 am
It's only a crossword but can someone answer the following,

Unit of mass equal to one litre of oxygen

Thanks.
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raprap
 
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Reply Sat 9 Apr, 2005 06:27 pm
Assume Standard Temperature 25degC & Pressure (1 atm)---STP

1 gmole of any gas @ STP ~ 23 liter, 1 gmolel of O2 is 32 grams. So 1 liter of O2 @ STP is 32/23 grams.

Under other conditions I could make a liter of O2 weigh anything I want, from a microgram to a pennyweight.

Rap
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