Wednesday
April 16, 2014

Homework Help: chemistry

Posted by claire on Wednesday, February 20, 2013 at 6:00pm.

What is the pressure in millimeters of mercury of 0.0115mol of helium gas with a volume of 211ml at a temperature of 25 degrees celsius?

Ok so I've come up with many different answers but none are right. You convert the mL to L and the temperature to Kelvin by adding 273 right? and you're using PV=NRT? And is the answer in psi so that I need to convert it to mmHg? Sorry, so many question!

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