Experiment 1
Fundamental Laboratory Techniques


SAFETY PRECAUTIONS FOR EXPERIMENT 1

  • Wear safety goggles throughout the experiment.
  • Never pipette by mouth. Always use the suction bulb for drawing solutions into the pipette.
  • Always wash you hands before leaving the laboratory.

GENERAL LABORATORY SAFETY RULES

1.
Always wear safety goggles in the lab. You are also required to wear shoes that cover the entire foot. No open toes, heels, or arches.
2.
When heating a test tube, never point its mouth toward anyone.
3.
Do not purposefully smell the gases generated by chemical reactions.
4.
Read the label carefully before removing the chemical from a container, because serious accidents can occur, in some cases, if the incorrect chemicals are combined. Label your container before obtaining chemicals so that they will not be confused after you return to your work station.
5.
Care must be exercised in the handling of all chemicals. If any chemical is spilled on the hands, immediately flush with water. If strong acid or base is spilled on the hands, further treatment may also be necessary. If acid or base is spilled on the clothes, flush with water, if possible, and contact your instructor immediately for advice.
6.

Because of the presence of toxic chemicals in the lab, never eat or drink in the lab. Also do not put objects (pens, pencils, hands, etc.) in the mouth while in the lab. Such objects may have come into contact with toxic substances which could be accidentally ingested in this manner.

7.
Carry out all operations involving noxious gases under the hood.
8.
Carefully follow the instructions in the lab experiment. Do not substitute equipment or attempt a different procedure unless so advised by your instructor.
9.
Always wash your hands before leaving the laboratory.
10.
Dispose of waste as discussed in the experimental procedure or as directed by your instructor.
11.

Discard cracked or chipped glassware.

12. Never pipette by mouth. Always use the suction bulb for drawing solutions into the pipette.
 

1. Lab Policies
2. Safety
3.
Objectives/Overview
4.
Procedures
5. Observations
6.
Equipment
7.

View Techniques:
A. Measure Temperature
B. Measure Volume with a
graduated cylinder
10-mL pipette
25-mL pipette
50-mL burette
C. Measure Mass

8. Waste Disposal/Clean-up
9.

Calculations/Setups

10. Conclusions
11. Sample Report Forms
12. Grading Scale
13. Review Prelab Questions
14.
Review Postlab Questions
 
   
 
 
 

 

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