The first fullerene to be discovered was Buckminsterfullerene - AQA - GCSE Chemistry Combined Science - Question 4 - 2021 - Paper 1
Question 4
The first fullerene to be discovered was Buckminsterfullerene.
What is the formula of Buckminsterfullerene?
Tick (✓) one box.
C40
C50
C70
Graphite is a form... show full transcript
Worked Solution & Example Answer:The first fullerene to be discovered was Buckminsterfullerene - AQA - GCSE Chemistry Combined Science - Question 4 - 2021 - Paper 1
Step 1
What is the formula of Buckminsterfullerene?
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Answer
The formula of Buckminsterfullerene is C60.
Step 2
Explain why graphite conducts electricity.
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Answer
Graphite has delocalised electrons that can move through the structure. This allows the delocalised electrons to carry electrical charge.
Step 3
Explain why steel is harder than iron.
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Answer
Steel is harder than iron because carbon atoms have different sizes compared to iron atoms. This difference distorts the layers of iron atoms, preventing them from sliding past each other easily.
Step 4
Calculate the mass of iron (X) in the fork:
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Answer
To calculate the mass of iron (X) in the stainless steel fork, we first find the total mass of the fork using the percentage of iron:
total ext{ mass of fork} = rac{16.29}{28.08} imes 100 = 58.01 ext{ g}
Then we calculate the mass of iron using the percentage of iron in the fork:
