An Experiment On Alcohols

Submitted By besa91
Words: 334
Pages: 2
Open Document
Introduction
Alcohols are organic compounds that contain the hydroxyl group (-OH). Alcohols are classified according to the number of carbon atoms the carbon atom bearing the hydroxyl group is attached to. If the carbon atom bearing the hydroxyl group is attached to one carbon, the alcohol is said primary and if it is attached to two carbons it is a secondary alcohol and a tertiary alcohol if attached to three carbons. If the carbon atom bearing the hydroxyl group is in a benzene ring it is called a phenol and is a secondary alcohol. In this experiment, chromate ion will be used to react with different alcohols including an unknown one. We will then classify the alcohols and identify the unknown based on the color of the solutions after the reaction. The apparition of a green color indicates a primary or a secondary alcohol oxidized by the chromate. The persistence of an orange color indicates absence of reaction and therefore a tertiary alcohol as tertiary alcohol cannot oxidize.
Apparatus and chemicals
6 test tubes
Ethanol
2-Propanol
T-butyl alcohol
Cyclohexanol
20%Phenol
Unknown
2%Chromate solution

Procedure
8Drops of the alcohols and an unknown were placed in separate test tubes. 2 Drops of chromate solution were added to each test tube and looked for a color change. The orange color of chromate solution changed to green in some tubes (oxidation of the alcohol has taken place) and remains orange in other tubes (no oxidation happened). Observations were
Show More

Related Documents: An Experiment On Alcohols

Essay about Oxidation Reduction Titration With Pota

this lab an oxidation-reduction titration was performed to complete a volumetric analysis of iron. Potassium dichromate was titrated with a solution of water, an organic redox indicator, and a mix of concentrated phosphoric/sulfuric acid that was combined with an unknown substance. The solution was titrated with the potassium dichromate until the solution reached a deep purple, indicating the iron ions had been oxidized. The procedure was repeated three times with three different masses of unknown…

Words 904 - Pages 4

AP Chemistry Notes

AP Chemistry Notes Stephen Akiki Colchester High School Download at http://akiscode.com/apchem ♥♠♣♦ Special Thanks to Stephen Bosley (Boser) Contents 1 FOREWORD/DISCLAIMER 4 2 Solubility Rules 2.1 Soluble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.2 Insoluble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.3 Naming Rules . . . . . . . . . . . . . . . . . . . . . . . . . .…

Words 6703 - Pages 27

Sexually Transmitted Diseases Essay

Science For Living Notes (Compiled) Table of Contents Unit 1 Measurement 5-10 Unit 2 Matter 11-48 Unit 3 Basic materials for maintaining life Air 49-54 Water 55-68 Food 69-71 Other biomolecules of life 72-76 Unit 4 Energy in the Community Electricity 77-78 Heat 78-81 Light 82-91 Sound 92 Simple Machines 93-99 Unit 5 The Physical Environment Weather and Climate 100-113 Soils 114-128…

Words 35677 - Pages 143