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July 4, 2015

Homework Help: AP Chem

Posted by Anna on Tuesday, November 4, 2008 at 7:44pm.

A sample of H2 is collected by displacing 145 mL of water. The pressures of the gas and the atmosphere are equalized. The atmospheric pressure is 745 mmHg. The temperature of the water and gas are identical at 26 degrees C. How many moles of H2 have been evolved?

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