Knowns and Unknowns
RESULTS
Solubility Tests
(indicate soluble or not)
| Compound |
H2O |
NaOH |
NaHCO3 |
HCl |
H2SO4 |
| known carboxylic acid |
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| known ketone |
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| known aldehyde |
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| known amine |
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| known alcohol |
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| known phenol |
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| known inert |
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| solid unknown |
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| liquid unknown |
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Functional Group Tests
(indicate positive test or not)
|
bromine/water |
ferric chloride |
copper ion |
DNP |
chromic acid |
acetyl chloride |
Lucas |
| solid unk |
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| liq unk |
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Solid Unknown Code Number: __________________________________________
mp of Solid Unknown: ________________________________________________
Identity of Solid Unknown: __________________________________________
Liquid Unknown Code Number: _________________________________________
Identity of Liquid Unknown or Functional Group: _____________________
DISCUSSION
- Describe the solubility tests. Explain why certain functional groups
dissolved in certain solutions (you now know enough acid/base chemistry
to figure this out). Chemical equations will help here.
- Describe each positive functional group test that you did with the
known compounds. What did it look like? How did you know it was positive?
- If any of the knowns gave ambiguous results, discuss those.
- Describe the solubility tests and mp you did on the solid unknown.
Be sure you are clear in the conclusions you made at each step.
- Describe the functional group tests you did on the solid unknown. Be
sure you are clear in the conclusions you made at each step.
- If any of the tests gave conflicting results, discuss this.
- Propose an indentity for the solid unknown based on your data.
- Repeat the descriptions for the liquid unknown.
- Propose an identity for the liquid unknown or suggest a functional
group that it contained.
