Term
| List First Step of Functional Group Lab |
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Definition
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Term
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Definition
Litmus
. red Carboxylic acid
.blue amine |
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Term
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Definition
Solubility in 5% NaOH
.soluble
.COOH
.insoluble
.5% HCl
.insoluble
.neutral compound
.soluble
.base (Amine) |
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Term
| Step after Litmus or 5% HCl |
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Definition
.Neutral compund
. 2,4 DNP
.precipitate
.carbonyl compounds: ketone or aldehyde
.no precipitate
. Chromic Acid |
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Term
| Step after 2,4 DNP no reaction |
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Definition
.Chromic Acid
.no reaction
.possible Alkene
. Bromine/CCl4 test
.reaction (green color)
.alcohol |
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Term
| Step after 2.4 DNP reaction |
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Definition
.Tollen's Test
-no reaction
ketone
-reaction(Silver coating)
aldehyde |
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Term
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Definition
-sites of reaction
-determine physical properties
-used to classify compounds into groups by reactivity
-sere as basis of naming |
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Term
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Definition
If soluble in water, polar functional groups and low molecular weight
-5 carbons or less |
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Term
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Definition
| Color change of reagent from brick red to colorless indicates presence of alkenes |
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Term
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Definition
Oxidation Reaction
-1, 2 degree alcohols are green color
-3 degree and other functional groups (no reaction) stays orange |
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Term
| 2,4- DNP tests for carbonyl carbon |
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Definition
(C=O) of a ketone or aldehyde
-yellow,orange,rd precipitate |
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Term
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Definition
.Aldehydes
.silver coating in test tube |
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Term
| .Silver Nitrate & Na I/ Acetone |
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Definition
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Term
| SEperation of substance is based |
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Definition
| on their solubility (miscibility) |
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Term
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Definition
| liquid-liquid extractions |
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Term
| If two liquids are immiscible |
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Definition
| Meaning you two layers in the separator funnel |
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Term
| Compounds dissolved in one liquid through a reation |
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Definition
| will change their solubility and they move to the other |
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Term
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Definition
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Term
| When adding Sodium Bicarbonate to Caffeine |
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Definition
| do in a beaker, then transfer to sep. funnel |
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Term
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Definition
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Term
| After drying each componet |
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Definition
| gravity filter into weighted flask and then cover loosely |
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Term
| Infrared Spectroscopy gives you information about |
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Definition
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Term
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Definition
.Can ID compounds
.Id functional groups in compounds
. Tells you how pure sample is
.Can be done with solids, liquids, and gases |
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Term
| Spectrum is seen as series of absorption peaks with |
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Definition
| different shape and intensity |
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Term
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Definition
| characteristic frequencies for functional groups |
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Term
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Definition
.simple, quick and inexpensive
.resonable sensitive and require only a small amount
used to identify unknowns and further analysis |
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Term
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Definition
| compounds are separated by attraction |
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Term
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Definition
| Compounds are separated by solubility |
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Term
| Solvents more similar to the mobile phase |
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Definition
| will move the fastest and will be closet to the solvent front |
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Definition
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Definition
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Term
| Other than polarity movement can be based on |
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Definition
| H-bonding and intermolecular forces |
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