Advertisements
Advertisements
Question
With a labelled diagram describe in brief an activity to show the formation of ester.
Advertisements
Solution
The activity given below shows the formation of ester :
- Take 1 mL ethanol (absolute alcohol) and 1 mL glacial acetic acid along with a few drops of concentrated sulphuric acid in a test tube.
- Warm in a water-bath for at least five minutes as shown in the figure below.
- Pour into a beaker containing 20-50 mL of water.
- After some time, there will be the formation of a fruity smell compound. The compound formed is an ester.
The formation of the ester can be represented by the chemical reaction as:
\[\ce{\underset{\text{(Ethanoic acid)}}{CH3COOH} + \underset{\text{(Ethanol)}}{C2H5OH}->[conc. H2SO4] \underset{\text{(Ester)}}{CH3COOC2H5} + H2O}\]
APPEARS IN
RELATED QUESTIONS
A student adds a few drops of ethanoic acid to test tubes X, Y and Z containing aqueous solutions of sodium chloride, sodium hydroxide and sodium carbonate, respectively. If he now brings a burning splinter near the mouth of the test tubes immediately after adding ethanoic acid in each one of them, in which of the test tube or test tubes the flame will be extinguished?
(A) X and Y
(B) Y and Z
(C) X and Z
(D) only Z
A gas is liberated immediately with a brisk effervescence, when you add acetic acid to sodium hydrogen carbonate powder in a test tube. Name the gas and describe the test that confirms the identity of the gas.
Give a reason for Conductivity of dilute hydrochloric acid is greater than that of acetic acid
Give the structural formulae of acetic acid.
What is glacial acetic acid?
Write three physical properties of acetic acid.
Mineral acids are stronger acids than carboxylic acids because
- mineral acids are completely ionised
- carboxylic acids are completely ionised
- mineral acids are partially ionised
- carboxylic acids are partially ionised
Write the chemical equation for the following:
Esterification Reaction
Give the balanced chemical equation of the following reaction:
Neutralization of NaOH with ethanoic acid.
Give the balanced chemical equation of the following reaction:
Neutralization of NaOH with ethanoic acid.
