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December 20, 2014

December 20, 2014

Posted by **Lola** on Monday, September 5, 2011 at 1:31am.

A steel cylinder contains 98.0 moles of oxygen gas at a temperature of 38 degrees C and a pressure of 740 torr. After some of the oxygen gas has been used, the pressure is reduced to 332 toor at a temperature of 24 degrees C. What mass of oxygen gas is removed from the cylinder?

- Chemistry -
**DrBob222**, Monday, September 5, 2011 at 1:58amUse PV = nRT and solve for the NEW number moles from the second set of conditions and subtract from the original moles to give you moles oxygen removed. Then n = grams/molar mass and solve for grams.

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