Can anybody help with my chemistry question?

Posted on 2014-12-04 07:46:00 in Chemistry by LILAC

Im having trouble with the following questions:

1. Calculate the final volume when 5.00L of argon gas undergoes a pressure change from 1.85atm to 5.95atm . Assume that the temperature remains constant.

2. Calculate the final Celsius temperature of nitrogen dioxide gas if 1.95 L of the gas at 25?C and 375mmHg is cooled until the pressure is 225mmHg . Assume that the volume remains constant.

3. A sample of hydrogen chloride gas occupies 0.850L at STP. What is the pressure in atm if the volume is 0.125L at 20?C?

4. If 1.25mol of oxygen gas exerts a pressure of 1300mmHg at 40?C, what is the volume in liters?

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