R.O.L.L.
The Rural Outreach Laboratory Learning program provides regional teachers with the opportunity to borrow portable laboratory equipment and associated sample experiments for use in their classrooms.
Sponsors
- Buhl Foundation
- Bedford County Chamber Foundation
R.O.L.L. Experiments
Using a Gas Chromatograph: Identifying Unknown Compounds
Age: 9th-12th graders
Time: Approximately 1.5 hours
Objectives: In this experiment, you will
- Familiarize yourself with a very basic gas chromatography instrument
- Measure and analyze the retention time of each of six substances as they pass through a Vernier Mini GC.
- Measure and analyze the retention time of an unknown mixture of the substances.
- Identify the substances present in the unknown mixture based on retention times.
Reserve the Mini GCs and/or materials for Identifying Unknown Compounds module.
Verification of Esterification Lab
Age: 9th-12th graders
Time: Approximately 2 hours
Objectives: In this experiment, you will
- Familiarize yourself with a very basic gas chromatography instrument
- Conduct an esterification reaction to produce ethyl acetate.
- Measure and analyze the GC retentions time of the reactants and products involved in synthesizing ethyl acetate.
- Measure and analyze the GC retentions time of the reaction mixture to confirm the production of ethyl acetate.
Reserve the Mini GCs and/or materials for Verification of Esterification module.
GLX, GLX sensors, and Turning Point Units
Visit www.pasco.com for information on sensors and experiments.
Equipment available includes:
- Turning Point Unit 1: 33 cards/2 receivers
- Turning Point Unit 2: 25 cards/1 receiver
- GLX (quantity of 6)
- Chemistry multimeasure packet: contains temperature probe, gas sensor, voltage sensor, and pH sensor (quantity of 6)
- Geiger-Muller Sensor (quantity of 6)
- Conductivity Sensor (quantity of 6)
- Light Sensor (quantity of 6)
- Respiration Sensor (quantity of 6)
- Heart Rate Sensor (quantity of 6)
- Spectrometer that will link to the GLX (quantity of 6)
Reserve the GLXs, Sensors, or Turning Point Units