Homework Help: Chemistry 105

Posted by JULIE on Sunday, October 23, 2011 at 5:27pm.

A heliox deep-sea diving mixture contains 2.0 g of oxygen to every 98.0 g of helium.
What is the partial pressure of oxygen when this mixture is delivered at a total pressure of 9.3 atm?

Chemistry 105 - bobpursley, Sunday, October 23, 2011 at 6:17pm
find moles of each. Then add them to get total moles.

pressureO2= molesO2/totalmoles * 9.3atm
pressureHe=molesH2/totalmoles*9.3 atm

http://en.wikipedia.org/wiki/Dalton%27s_law

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