Q2. *Properties Of Ethanoic Acid Flashcards
What three reactions are carried out?
Reaction with sodium carbonate
Reaction with magnesium metal
Reaction with ethanol
Describe the sodium carbonate reaction
6
Sodium carbonate powder is placed in boiling tube
Ethanoic acid solution is added to boiling tube
Fizzing is observed
Lighted taper at mouth of boiling tube
Gas evolved is passed through limewater
Limewater turns milky because calcium carbonate (chalk) is formed
Describe the reaction with magnesium metal
6
Small length of Manheim ribbon, cleaned with sandpaper, is added to a test- tube containing a dilute solution of ethanoic acid
A lighter taper is held at the mouth of the test tube
Fizzing is observed
A mild ‘pop’ is heard
Magnesium ethanoate and hydrogen are formed
Hydrogen forms an explosive mixture with air
Describe the reaction with ethanol.
5
Add 2cm cubed ethanol to 1cm cubed glacial ethanoic acid in a test tube
Add the drops of sulfuric acid
Place test tube in beaker of hot water for ten minutes
Ethyl ethanoate is formed which has a fruity smell
No color change is observed
List the three forms of ethanoate formed from these reactions
Sodium ethanoate
Magnesium ethanoate
Ethyl ethanoate
List the chemicals needed
7
Sodium carbonate powder
Ethanoic acid
Limewater
Magnesium ribbon
Dilute ethanoic acid
Glacial ethanoic acid
Sulfuric acid
