background [prelab assignment (10 points) due at the beginning of the lab

describe / rationalize the use of graphical analysis to determine the # moles of gas in the system & volume of the tubing. [hint: use the ideal gas equation (which incorporates Boyle's law) and the relationship between the volume of the system, volume of the tubing, and the volume of the syringe]

sketch a data table for your experimental measurements (i.e. review the purpose & content of your lab report)

purpose

determine the volume of the tubing

determine the number of moles of gas in the system

materials

syringe; tubing; pressure transducer; data collection system; thermometer

methods / data analysis

student design

Content of lab report ( 25 points)

introduction  [5 points]

• basis of determining the volume of the tubing & number of moles of gas in the system using graphical analysis

methods  [5 points]

• self-explanatory

results  [10 points]

• graphs:  V vs. P;  V vs. 1 / P
• determination of the volume of the tubing & # moles of gas in the system

discussion  [5 points]

• is the experimental data consistent with Boyle's law ?  Justify your answer by referring to both graphs (relationship between pressure versus volume; 1 / P versus V).

resources

lab activity source (examples):  site 1  &  site 2  [access 4 / 2009]