Circle the atoms in the structure that prove ethyl propenoate is an ester.
Aqueous bromine is shaken with a sample of ethyl propenoate. Using the structure of ethyl propenoate, explain why the aqueous bromine becomes colourless.
Ethyl propenoate is formed by the reversible reaction between a carboxylic acid and an alcohol. Name the alcohol involved in this reaction.
The reaction uses an acid catalyst. State the effect of this catalyst on the equilibrium position.
The concentration of the alcohol is increased. Describe and explain what happens to the equilibrium position.
In an experiment 10.8 g of the carboxylic acid reacts with an excess of the alcohol. The experimental yield of ethyl propenoate is 9.45 g. The relative formula mass of the carboxylic acid is 72. Show that the maximum possible yield of ethyl propenoate is 15.0 g.
Calculate the percentage yield of ethyl propenoate for this experiment.