Orgo 2 Lab 9 Complete.docx - Cat Olson TA: Dr. William...

Cat Olson Lab Performed: 11/2/2020
TA: Dr. William Bowie Lab Due: 11/9/2020
CHEM 2204
Hypochlorite Oxidation of Methyl Ketones by the Haloform Reaction: Benzoic Acid
Objective: The purpose of this experiment is to carry out a haloform reaction, which is a type of
redox reaction, in order to synthesize benzoic acid. Solvent extraction will be performed by ether
extraction, and the product is dried using a Hirsch funnel. Acidification will also be carried out in
this experiment, wherein HCl is added dropwise to the aqueous layer in order to create the
precipitate. IR and melting points analysis are performed on the final product.
Experimental Procedure: The procedure was followed as described in Mayo’s manual on pages
403-408, along with the modifications provided in the Canvas document Haloform
Modifications.
Reaction Scheme:
Data and Results
Data and Results Table
Acetophenone Aqueous
NaOCl
Sodium Sulfite Benzoic Acid
Formula NaOCl Na2SO3 C7H6O2
Molecular
Weight
120.16 120.6 122.12
Amount (mg) 42 94 67
Amount
(
μL/mL
)
90
μL
3.2 mL
Mmols 51 .771 .549