PracExam4_F08

# PracExam4_F08 - Name(print Signature CHM 103 EXAM 4 Fall...

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Name (print) _____________________________________________ Signature ________________________________________________ CHM 103 EXAM 4 Fall, 2008 Page 1 ______ 2 ______ 3 ______ 4 ______ Total _______ Part I (56 pts). Multiple choice (4 pts each)

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1. Convert a barometric pressure of 30.45 in of Hg to mm Hg. (1 in = 2.54 cm) A) 120 mm Hg B) 411 mm Hg C) 773 mm Hg D) 834 mm Hg E) 1,200 mm Hg _____ 2. If the outside barometric pressure is 1.00 atm, what is the pressure of the air pocket? EMBED ChemWindow.Document _____ 3. A sample of Ne gas has a volume of 14.2 cm 3 at 735 mm Hg. If the Ne gas is compressed to 11.4 cm 3 at constant temperature, what is its pressure? A) 1,210 mm Hg B) 916 mm Hg C) 812 mm Hg D) 590 mm Hg E) 423 mm Hg _____ 4. A sample of gas occupies 300 mL at 100 o C and 1.00 atmospheres. What volume will it occupy at 200 o C with the pressure staying constant? _____ 5. A 224 mL vessel contains N 2 gas at 1.25 atm and 24.0 o C. How many grams of N 2 are in the vessel? _____
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