Experiment 6 Prelab
Experiment 6: Separation and Identification of an Unknown Binary Mixture.
Objective: In this experiment, we will be separating an unknown organic compound
through various step process and then identifying via selective solubility tests
Professor Kathleen V. Kilway and Robert Clevenger, Department of Chemistry, University of Missouri Kansas City, 2007 CHEM 322L
Diels-Alder Reactions: Formation
of Dimethyl Tetraphenylphthalate, Tetraphenylnaphthalene, and Hexaphenylbenzene
Table of Safety Hazards and Physical Constants
39.9971 g mol1
Experiment 5 Prelab
Experiment 5: Identification of Functional Groups in Unknown Compounds Using
Classifications Tests and IR Spectroscopy.
Objective: In this experiment, we will be identifying functional groups in two unknown
compounds using IR spectrosc
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Pre-Lab Report: #4: Qualitative Organic Analysis
To perform different classification tests to identify functional groups in unknown compounds. To
can identify positive and negative results while performing these tests.
Table of Safety Hazards an
Organic Chemistry 11 Lab - CHEM 225.Rc Exp 1 & 2
+ brown gas
+ ). organic product
heat 100 OC
The reactions shown above are part of experiment I. Some products are not shown, and they are
ORGO 225 (07)
Experiment # 1. Reduction of Camphor to Borneol and Isoborneol
Instructor: Diego Montenegro
5. Introduction: Oxidation and reduction reactions are an essential step in many, if not most,
organic syntheses. It als
LAB REPORT FORMAT FOR EXP 5
Each unknown may have up to two functional groups. Please pay attention to the logic
behind the identification of your functional groups. Include all data pages from lab
notebook pages (raw data, notes, etc) as an appendix.
1. I just broke my thermometer. What should I do?
A digital thermometer is used for melting point determinations and a glass thermometer
containing an alcohol is used for distillations. If you should break a glass thermometer,
immediately inform the
The purpose of this lab was to learn how to diazotize p-nitroaniline into a
diazonium salt. To couple 2-naphthol with the diazonium salt to form para-red and
to react the salt with H2O to form p-nitrophenol.
Treatment of Results
NMR Problem Set 3
Problem 1: Compound B has a molecular formula,
C6H8O compound B.
Classification Tests: 2,4-DNP shows a bright orange
precipitate: KMnO 4 and Bromine were both
decolorized upon addition to compound B.
I.R. Spectrum: 1680 cm-1 (strong), 1
STRATEGIES IN ORGANIC
ORDER OF ELUCIDATION
Determination of the molecular formula
Mass Spec., 1H-NMR, 13C-NMR, IR
Unsaturation number or degree of unsaturation.
number of double, triple bonds present.
Also the presence of rings.
Ways to separate mixtures Chapter 3:
Matter & Its Properties
How do we separate
Substances in a mixture are physically combined, so
processes bases on differences in physical properties
are used to separate
Based on the following experimental observations and spectral data, deduce
the structure of an unknown compound:
0 The compound is soluble in aqueous NaHCO3 solution.
0 Tollens, 2,4-DNP, and Lucas tests were all negative but the molecule
Lab 2: Purification of Organic Compounds
Part I: The Recrystallization Pre-Lab Video on the orgolabs website. Zubrick Chapters
12 (The Melting Point Experiment; we use the Mel-Temp variety) and 13
(Recrystallization). Appendix 5 of this manual.
Qualitative Organic Analysis
Part A: CARBONYL COMPOUNDS
2,4-DNP Test for Aldehydes and Ketones
Tollens Test For Aldehydes
Iodoform Test for Methyl Ketones
2,4-DNP TEST: Test for aldehydes and ketones.
Separation and Identification of an
Unknown Binary Mixture
PHYSICAL EXAM: physical state, color & odor.
SEPARATION: Acid/base extraction, distillation or Filtration.
PURIFICATION: Recrystallization and Distillation.
Experiment 2: Reactions of Diazonium Ions
CHEM 225 (07)
Instructor : Diego Montenegro
Azo dyes are the largest and very important group of synthetic dyes. In azo linkage many
combinations are possible, which gi