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Topic: Gases  (Read 3268 times)

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Offline Jessica5515

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Gases
« on: November 20, 2007, 05:59:52 PM »
A volume of 1.0 L of an unknown gas from the atmosphere has a mass of 1.43 g at STP. Do calculations to determine the unknown atmospheric gas. show your work.
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Offline Sev

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Re: Gases
« Reply #1 on: November 20, 2007, 06:07:33 PM »
First, how many moles of gas do you have?
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Offline Jessica5515

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Re: Gases
« Reply #2 on: November 20, 2007, 06:13:17 PM »
It doesnt say.. thats the whole question
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Offline Sev

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Re: Gases
« Reply #3 on: November 20, 2007, 06:17:43 PM »
Quote
It doesnt say.. thats the whole question

You can calculate it though.  Use Gas Law: PV=nRT (you know all variables except for n)
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