Organic Chemistry Lab 1 - Experiment 23A n-Butyl Bromide

How to approach a lab write up for EXP 23A

Name

Date (of experiment)

Title of experiment: (as listed in manual/handout)

Purpose or Aim: This says exactly what the goal of the experiment is. It may consist of one or more parts. Based on what is stated in the procedure, you should have a very good idea as to what the point of the experiment is. Explicitly and briefly state all in this section. (3 points)

Examples: 1. To recrystallize an impure sample of benzoic acid; 2. To determine the melting point of salicylic acid

Introduction: This explains the theory behind the experiment. Give some general background as to what the experiment is about. Include definitions of any key concepts that are an important part of the experiment. (5 points)

This approach can be applied across all topics being covered.

Materials: List glassware, chemicals and equipment/instrumentation used in the experiment.

(5 points)

Procedure: Write a step by step procedure of the experiment as outlined in the video. (5points)

Results and calculations: Report results from experiment. Tables can be used, also show sample calculations. (10 points)

Mass of 25 mL Rb Flask

Mass of 25 mL Rb Flask + n-butyl alcohol

Mass of n-butyl alcohol (1pt)

Mass of weight boat

Mass of weight boat + NaBr

Mass of NaBr (1pt)

Mass of conical flask

Mass of conical flask + product

Mass of n-butyl bromide (1pt)

Theoretical yield of n-butyl bromide (4pts)

% yield of n-butyl bromide (3pts)

Discussion: Analyze the data you obtained in your experiment. Explain difference between the starting weight of the impure sulfanilamide and the pure sulfanilamide. (5 points)

Conclusion: (3 points)

Questions (1-6 pg 206) ( 14 points)