- 10-mL syringe with tip cap
- 600-mL beaker
- hot plate
- safety goggles
- test tube holder
- Take a 600-mL beaker and fill it with 500 mL of tap water.
- Remove the tip cap from a syringe and pull on the plunger to draw about 5mL of air into the syringe and replace the tip cap to seal the air inside the syringe.
- Immersed the syringe in the water bath; use a test tube holder and clamp the barrel of the syringe to the side of the beaker.
- Take and record the temperature of the water.
- Place the beaker on the hot plate and boil the water.
- Take and record the temperature of the water every 20 degrees.
- Take and record the volume of the syringe at each temperature.
- Convert temperature from oC to K by adding 273.
- Repeat the lab two (2) more times.
- Graph by using volume (V in mL) against temperature (T in K), y-axis against x-axis, respectively. (color code the three different trials)
||Volume of Air in Syringe (mL)
|(initial water temperature)
1. What is the manipulating variable? What is the responding variable? ???
2. Describe the shape of the graph. ???
How to write a lab report?
Chemistry in January