Cider is made from apples in a process that involves crushing and pressing the apples, converting the sugars in the apples into alcohol, maturing and bottling - Scottish Highers Chemistry - Question 4 - 2019
Question 4
Cider is made from apples in a process that involves crushing and pressing the apples, converting the sugars in the apples into alcohol, maturing and bottling.
(a) ... show full transcript
Worked Solution & Example Answer:Cider is made from apples in a process that involves crushing and pressing the apples, converting the sugars in the apples into alcohol, maturing and bottling - Scottish Highers Chemistry - Question 4 - 2019
Step 1
State what is meant by the term enzyme.
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Answer
An enzyme is a biological catalyst that acts as a catalyst to accelerate biochemical reactions without being consumed in the process.
Step 2
Calculate the % mass of alcohol in the cider.
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Answer
Compound X is carbon dioxide (CO₂).
Step 4
State the systematic name for glycerol.
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Answer
The systematic name for glycerol is propane-1,2,3-triol.
Step 5
Explain fully why procyanidin B2 is water soluble.
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Answer
Procyanidin B2 is water soluble due to the presence of multiple hydroxyl (-OH) groups that can form hydrogen bonds with water molecules, enhancing its solubility in aqueous solutions.
Step 6
Name the carboxylic acid used to make ethyl 2-methylbutanoate.
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Answer
The carboxylic acid used to make ethyl 2-methylbutanoate is 2-methylbutanoic acid.
Step 7
Name the molecule on which terpenes are based.
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Answer
Terpenes are based on the molecule isoprene.
Step 8
Name the functional group circled in the ethanol molecule.
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Answer
The functional group in the ethanol molecule is the hydroxyl (-OH) group.
Step 9
Name this product.
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Answer
The further oxidation product of ethanal is acetic acid.
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