Chemistry Reference
In-Depth Information
5. Press the plunger upward to release all of the air from above the
solution, so that the liquid fills the tip of the syringe. Replace the
syringe cap.
6. Find the mass of the syringe filled with carbonated drink. Record the
mass on the data table. Allow the solution in the syringe to reach
room temperature. (You can warm the beverage with your hands to
speed the process if desired.)
7. Pull the syringe plunger back, creating a negative pressure that
will pull carbon dioxide gas out of the solution. Tap the side of the
syringe until bubbles are no longer being formed. Pull the syringe
plunger back as far as you can without removing it from the device,
then release it so that it will return to equilibrium. Tap the syringe
again, then pull the plunger back and release it once more.
8. Be sure that the tip of the syringe is facing upward and remove the
cap. Push the plunger in to expel all of the carbon dioxide, but none
of the liquid, from the syringe. Replace the cap.
9. Find the mass of the syringe and solution and record your findings
on the data table.
10. Remove the cap and plunger from the syringe. Pour the liquid down
the sink and rinse out the syringe.
Data Table
Measurement
Mass (g)
Syringe (including cap)
Syringe and carbonated drink
Syringe and drink with CO
2
removed
Mass of Carbonated drink
(syringe with beverage − mass of syringe)
Mass of drink without CO
2
(syringe and beverage with CO
2
removed − mass of syringe)
Mass of CO
2
(syringe with carbonated drink − syringe with CO
2
removed)
