1. Ester Lab

2. Preparation of Esters Lab
Esters are responsible for the “fruity” odours and flavours of many naturally occurring products. Chemists can reproduce these odours or flavours in the lab by mixing the right alcohol and carboxylic acid together; thus producing “artificial” or “synthetic” versions of these naturally occurring compounds.
In this lab activity you will create several esters and attempt to identify the odour of each ester created.
We will be doing the lab on TUESDAY, MARCH 8

3. Lab Procedure Flow 10mL cold water in dish, pour test tube #1
500 mL Beaker on hot plate secured to stand
10 drops ethanol
Test Tube #1:
10 ethanoic acid + 5 drops H2SO4
Hot water bath
for 5 minutes
10mL cold water in dish, pour test tube #1
Identify the smell and record results
10 drops propan-2-ol
Test Tube #2:
Hot water bath for 5 minutes
10mL cold water in dish, pour test tube #2
10 drops pentan-1-ol
Test Tube #3:
10mL cold water in dish, pour test tube #3
Create a Hot Water Bath
3 Test tubes in Racks
Teacher adds acids
Gently shake test tubes and place in hot water bath
Petri Dish
Smell

4. Lab Safety

5. Lab Apparatus

6. Lab Report
You must submit the following as your Lab Report (individually)
Purpose
Lab Procedure Flow Chart
Observations Table
Analyze and Evaluate (p. 67)
Apply and Extend (p. 67)