Lab 2 Separation of Organic Liquid Mixtures
Reading: Mohrig, page 51 and Technique 13 (skip 13.3b, 13.3c, 13.3d, and 13.5-13.7) and Technique 19.
Introduction: This week we will learn how to perform a distillation, a method for purifying liquids.
Lab 5 Acid / Base Extractions
Reading: Mohrig Technique 11 and 12: acid/base extractions, pg. 120; and 11.3-11.4.
Pre-lab: Look up the structures and mps of benzoic acid and 4-aminoacetophenone. Look up
the density and boiling point of ethyl acetate. Crea
Fracture (failure from applied stress), Fatigue (failure from repeating cyclic stress), Wear (rubbing/sliding
materials), Erosion/Cavitation erosion (mechanical damage from liquid movement or collapse of bubbles
on metal surface)
Anodic reactions: (1
1. Examples of corrosion can be found in everyday life. Describe one example which you have
seen. Is this particular instance of corrosion primarily an example of wastage of materials, an
economic loss, or a safety issue? Or is this example a combination
Experiment 8: Aldol Condensation
Melting Point of Unknown Product: 129.0-130.0 C (average); Trial 1: 129.0-130.0 C, Trial 2: 129.0-130.0 C
Based on our MP and consultation of the table giving product MPs, we believe we have fo
Interfaces form at physical boundary between 2 phases. Solution/air interface and metal/solution
interface considered. Key: Discuss how a potential difference originates across metal/solution interface
and concept of electrode potential.
Water: net charge
Melting Point, C
Cost ($US/kg of tube)
Experiment 5: Phenacetin Synthesis
The purpose of the experiment is to synthesize phenacetin using Williamson ether synthesis and amide
synthesis. The main reagents that were in the Williamson ether synthesis were P-acetaminophenol and
Experiment 4: Benzil Reduction
The purpose of the experiment was to determine the product from reduction of benzyl by using sodium
borohydride. The identity of the product was then identified through infrared spectroscopy (IR), thin
1. Are the following degradation processes strictly physical processes or do they also involve an
environmentally assisted component?
(a) The cleaning of a metal piece by sandblasting. Strictly physical as sand particles are
interacting with the metal pie
Experiment 1: Melting Point
Purpose: (1) To determine the melting range of two compounds (cinnamic acid and urea) in cases when
each compound is added to each other to give two differing overall compositions (2) To assess the purity
of the compounds using
25 February 2016
Lab 3: TLC Analysis and Column Chromatographic Separation of an Unknown Organic
Introduction: The Purpose of this experiment is to separate an unknown compound from
benzophenone, estimate its amount
Lab 5 Acid / Base Extractions
Introduction: Purpose of the experiment +5
Key experimental details, observations (+30 pts)
Key experimental details, observations:
appearance of starting material
appearance of product
TLC analysis and column chromatographic separation of an unknown organic compound
Reading: Mohrig technique 17 and 18.
Prelab: Look up the structure and melting points of biphenyl, naphthalene, acenaphthene and
benzophenone. Look up the boiling poin
Lab 1 Melting Point
Reading: Mohrig, Technique 14.
Pre-Lab: Look up the structures and melting points for urea and cinnamic acid. Predict whether adding a small
amount of urea to cinnamic acid will raise, lower or have no effect on the melting point.
Experiment 6: Reactions of Grignard Reagents with Carbonyls
In this experiment, we will determine the reactivity pattern of three different carbonyl compounds with
the addition of Grignard reagent. The products will be analyzed by infrared sp