1. why does the upper segment of the NFPA symbol indicate? 2.Briefly describe the precautions to...
1. why does the upper segment of the NFPA symbol indicate?
2.Briefly describe the precautions to take when you mix chemicals in a test tube.
3. Briefly describe the proper technique for heating liquids in test tube to temperatures below 100°C
4. Briefly explain what you should do first if you burn a small area on your skin the laboratory.
Homework Answers
1) The upper segment represents flammability.
2) Test tube must be held in slant position such that mouth of test tube does not points you. It is also to be ensured that none are present in front of test tube. Hold test tubes always with a proper holder and never by hands.
3) Using a hot water bath is best technique to heat below 100 degrees as it ensures uniform heating and temperature can be fixed as per requirements.
4) Rinse the burn with cold water. Depending on the degree of burn one may apply burnol and consequently visit a physician.
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1 - Provide a balanced equation for this reaction
2 - Provide a mechanism for the transformation of cyclohexanol
into cyclohexanone
3 - Provide a flow chart for the workup procedure for isolating
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layer you expect to find your product in each extraction.
4 - Provide the theoretical yield of cyclohexane in this
experiment.
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