This question is about organic compounds - AQA - GCSE Chemistry - Question 5 - 2015 - Paper 3
Question 5
This question is about organic compounds.
Ethanol is an alcohol.
One use of ethanol is in alcoholic drinks.
Give two other uses of ethanol.
5 (b) Which gas is produ... show full transcript
Worked Solution & Example Answer:This question is about organic compounds - AQA - GCSE Chemistry - Question 5 - 2015 - Paper 3
Step 1
Give two other uses of ethanol.
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Answer
Ethanol can be used as a fuel, providing energy for vehicles.
It also serves as a solvent in various chemical reactions and industrial processes.
Step 2
Which gas is produced when sodium reacts with ethanol?
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Answer
The gas produced is Hydrogen.
Step 3
What type of reaction produces ethanoic acid from ethanol?
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The reaction that produces ethanoic acid from ethanol is an oxidation reaction.
Step 4
Complete the displayed structure of ethanoic acid.
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The displayed structure of ethanoic acid can be represented as:
O
||
H₃C—C—OH
|
H
Step 5
Explain why the solution of ethanoic acid has a higher pH than the solution of hydrochloric acid.
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Ethanoic acid is a weak acid that does not completely ionize in solution, leading to a lower concentration of hydrogen ions compared to hydrochloric acid, which is a strong acid and fully dissociates. This means that the solution of ethanoic acid will have a higher pH.
Step 6
Name the ester made from ethanol and ethanoic acid.
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The ester formed from ethanol and ethanoic acid is called ethyl ethanoate.
Step 7
What type of chemical is used as a catalyst in this reaction?
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The catalyst used in the reaction to form an ester is typically an acid, such as sulfuric acid.
Step 8
What does volatile mean?
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Volatile means that a substance evaporates easily at room temperature due to having a low boiling point.
