Friday
March 27, 2015

Homework Help: Chemistry

Posted by Christina on Sunday, March 31, 2013 at 10:00pm.

A sealed flask contains 1 mole of hydrogen and 3 moles of helium gas at 20DC. If the total pressure is 40kPa, what is the partial pressure of the Hydrogen gas?

AND :)

The data below was obtained by a student in order to determine the percent of water in a Hydrate:

Mass of the Hydrate..............5.0gram
Mass of the Anhydrous Compound.. 3.2gram

What is the percent in the Hydrate?


PLEASE ANSWER THESE ASAP :D

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