Quiz2 - Chemistry 520 Winter Quarter 2008 Take Home Quiz 2...

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Unformatted text preview: Chemistry 520 Winter Quarter 2008 Take Home Quiz 2 This quiz is due no later than 4 pm on Friday, Feb. 1, 2008 in room 0048 McPherson lab. Write down first the mathematical equation with symbols and leave the numerical substitution at the end. Submit your answers on single sided paper. 1. A sample of CH 4( g ) having a volume of 2.80 liters at 25 C and 1.65 atm, was ignited with a sample of oxygen gas having a volume of 35.0 liters at 31 C and 1.25 atm to produce CO 2 and H 2 O vapor. Calculate the volume of CO 2 formed at a pressure of 2.50 atm and a temperature of 125 C. 2. Estimate the molar volume of CO 2 at 500 K and 100 atm by treating it as a van der Waals gas. 3. Assume that a nitrogen molecule acts as a hard sphere with radius 1.60 A. If you have a vacuum chamber that is 1.00 m on a side, to what pressure would it have to be pumped down in order that a nitrogen molecule has a reasonable chance of not colliding with another nitrogen molecule going from one side to the other (that is,...
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