1B Carboxylic acids /12 |
1) a) Write the molecular formula for ethyl propanoate [1]
b) Write a balanced chemical equation for the formation of ethyl propanoate [1]
c) Write a balanced chemical equation for the reaction between ethanoic acid and sodium metal [1]
d) Write a balanced chemical equation for the reaction between ethanoic acid and potassium hydroxide [1]
e) Write a balanced chemical equation for the reaction between ethanoic acid and calcium carbonate [1]
2) Esterification can be reversed by hydrolysis. Write equations for the hydrolysis of:
a) Acid hydrolysis of Methyl propanoate [1]
b) Acid hydrolysis of Ethyl methanoate [1]
c) Alkaline hydrolysis (NaOH) of Propyl ethanoate [1]
d) Alkaline hydrolysis (NaOH) of Methyl ethanoate [1]
3) Ethanoic anhydride is much more reactive than ethanoic acid.
a) Draw the structure of ethanoic anydride and explain how it is formed: [1]
b) Write an equation for the formation of methyl ethanoate using ethanoic anyhdride [2]