Practical 9 - Preparation of an ester and separation by distillation Flashcards
What’s used to make an ester?
Carboxylic acid and an alcohol
What’s the acid used in this practical?
Ethanoic acid
What’s the alcohol used in this practical?
Ethanol
How much Ethanoic acid do we measure out and using what?
25cm^3
Measuring cylinder
Where do we decant our substances into?
A round bottomed flask
How much ethanol do we use?
10cm^3
What do we add to the ethanol in the round bottom flask?
Anti-bumping granules
How much concentrated sulfuric acid do we add?
10 drops
Why do we do concentrated sulfuric acid during their practical?
Acts as a catalyst
What do we do with the reagents in the round bottomed flask?
Swirl them
What do we do after swirling the reagents in the round bottom flask?
Warm the mixture gently with a warm water bath for 15 minutes
How long do we warm the mixture in the water bath for?
15 minutes
Which apparatus do we need to set up for following the warming of the reagents?
Distillation
What do we do after warming the reagents in this practical?
Distill off the ethyl ethanote produced and collect in a clean, dry 100cm^3 conical flask
What’s the final stage of this practical?
Record the temperature at which the liquid product is collected
