Molar Mass of Butane
Name________________________
Purpose:
The purpose of this laboratory is to determine the molar mass of butane,
the fuel used in lighters.
Procedure:
Tape the little red hose to the inside of the graduated cylinder. Invert the
graduated cylinder in the tub of water. While holding the hose to the
outlet of the lighter, depress the release valve on the lighter to collect some
butane gas.
Make a data table, and collect the appropriate data. Use this data to
calculate the molar mass of butane. When finished, obtain the correct
formula for butane from your instructor, calculate its molar mass, and
determine the % error for this lab.
Materials:
You will have the following available for this lab:
Butane lighter
Digital balance
Tub of water
Thermometer
Ruler
Barometric pressure
100 mL Graduated cylinder
small rubber tube
water vapor pressure chart in notes
masking tape
Molar Mass of Butane
Data to use if you are absent:
Initial mass of lighter
Final mass of lighter
Barometric pressure
Volume of butane collected
Temperature of water bath
10.388 g
10.304 g
759.3 torr
37.7 mL
25.0 °C
Molar Mass of Butane
Data to use if you are absent:
Initial mass of lighter
Final mass of lighter
Barometric pressure
Volume of butane collected
Temperature of water bath
10.388 g
10.304 g
759.3 torr
37.7 mL
25.0 °C
Molar Mass of Butane
Data to use if you are absent:
Initial mass of lighter
Final mass of lighter
Barometric pressure
Volume of butane collected
Temperature of water bath
10.388 g
10.304 g
759.3 torr
37.7 mL
25.0 °C
Molar Mass of Butane
Data to use if you are absent:
Initial mass of lighter
Final mass of lighter
Barometric pressure
Volume of butane collected
Temperature of water bath
10.388 g
10.304 g
759.3 torr
37.7 mL
25.0 °C