CHEM-105, Visualizing Chemistry<BR>
Quiz 5, October 2, 2001

1. When the rates of diffusion of HCl gas and NH₃ gas are compared, HCl diffuses __________.

   A. at the same rate than NH₃
   B. faster than NH₃
   C. slower than NH₃

2. Explain the answer to number one:

   Click here for answer...

3. A substance that has a higher melting point than water is:

   A. Ammonia
   B. Oxygen
   C. Sucrose
   D. Ethanol
   E. Propane

4. At sea level, normal barometric pressure averages:

   A. 29mm Hg
   B. 540mm Hg
   C. 760mm Hg
   D. 1000mm Hg

5. A sample of air has a volume of 10.0L at a pressure of 15psi. Its volume at 60psi would be:

   A. 2.5L
   B. 5.0L
   C. 7.5L
   D. 30L
   E. 60L

University of Wisconsin-Stout
Department of Chemistry
Jarvis Hall 303I Science Wing
Menomonie, WI 54751
(715)-232-2292
ondrusm@uwstout.edu