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
0 4 . 2
Graphite is a fo... 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, which means that these electrons can move freely through the structure, allowing them 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 size difference distorts the arrangement of the layers of iron atoms, preventing them from sliding past each other easily, which increases the hardness.
Step 4
Calculate the mass of iron (X) in the fork.
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Answer
To find the mass of iron (X) in the fork, we can use the percentage of iron in the fork:
Given that the fork weighs 28.08g, the mass of iron can be calculated using:
X = rac{71.92}{100} imes 28.08 = 20.22g
Thus, X is approximately 20.22g.
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