Experiment 1 - Record the pairs of data for pressure (atm) and volume (mL)

Experiment 1


1. Record the pairs of data for pressure (atm) and volume (mL).

Volume (mL) Pressure (atm)


2. According to Boyle's Law, pressure is inversely proportional to volume, so prepare a graph of the data, with [1/volume] (units=1/mL) on the X-axis and pressure (atm) on the Y-axis.
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Draw a straight line through the data points. Does your experimental data verify Boyle's Law? Explain.



Graph (6 points)



3. What pressure would the gas sample have at a volume of 75 mL? At 300 mL?

Experiment 2

1. Record the pairs of data for pressure (atm) and volume (mL).
Volume (mL) Pressure (atm)






2. According to Boyle's Law, pressure is inversely proportional to volume, so prepare a graph of the data, with [1/volume] (units=1/mL) on the X-axis and pressure (atm) on the Y-axis.
Draw a straight line through the data points. Does your experimental data verify Boyle's Law? Explain.


Graph (6 points)



3. What pressure would the gas sample have at a volume of 75 mL? At 300 mL?


4. How do the results for butane compare with those for propane? Does each gas obey Boyle's law?

5. What are the variables that Robert Boyle’s held constant during his experiments on gases?

6. In a real lab situation, when the volume available to a gas is decreased, the initial change(s) would be…