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 prod... 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 engines.
As a solvent in various chemical 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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Answer
The reaction type is oxidation.
Step 4
Complete the displayed structure of ethanoic acid.
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Answer
The displayed structure of ethanoic acid is:
O
||
H - C - C - OH
| |
H H
Step 5
Explain why the solution of ethanoic acid has a higher pH than the solution of hydrochloric acid.
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Answer
Ethanoic acid is a weak acid which does not completely ionize in solution, resulting in a lower concentration of hydrogen ions compared to hydrochloric acid, which is a strong acid that fully ionizes.
Step 6
Name the ester made from ethanol and ethanoic acid.
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The ester made from ethanol and ethanoic acid is ethyl ethanoate.
Step 7
What type of chemical is used as a catalyst in this reaction?
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Answer
The catalyst used in this reaction is an acid.
Step 8
What does volatile mean?
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Volatile means that a substance easily evaporates at normal temperatures, has a low boiling point, and is not flammable.
