Unit 5: Gas Laws

Boyle's Law Experiment

-Purpose (explore the relationship between pressure and volume)

-Data

-Graph

-Analysis  (Are pressure and volume directly or inversely proportioanl?

Ideal Gas Law

Soda Can

• Find the volume of the can and record the result to the correct number of significant digits.  Describe your method for finding the volume.

• Explain why the volume of liquid in the can is less than the total volume of the can.

• Add 50.0 mL of water to the can.  Place the can on the hotplate (setting: 50%).  Record the temperature inside the can periodically.  Make and record other observations.

• Prepare an ice bath and record the temperature.

• When the temperature of the contents of the can stabilizes at a maximum value, record the value.  Quickly invert the can into your ice bath and then promptly remove the can from the ice bath.  Find the volume of the water in the can and the volume of the can.  Record your observations.  Provide an explanation for your observations. 

Partial Pressure

Collecting a gas over water -- magnesium ribbon