This is about different forms of carbon - AQA - GCSE Chemistry - Question 3 - 2022 - Paper 1
Question 3
This is about different forms of carbon.
Figure 5 represents the structure of diamond.
Figure 5
Key
⚪ Carbon atom
Describe the structure and bonding of diamond.... show full transcript
Worked Solution & Example Answer:This is about different forms of carbon - AQA - GCSE Chemistry - Question 3 - 2022 - Paper 1
Step 1
Describe the structure and bonding of diamond.
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Answer
Diamond has a giant structure, often described as a macromolecular or giant lattice. Each carbon atom forms four covalent bonds with adjacent carbon atoms, resulting in a very strong and rigid structure.
Step 2
Explain why diamond has a very high melting point.
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Answer
Diamonds have very strong covalent bonds that must be broken to melt the structure. Due to the large number of such bonds present, a significant amount of energy is required to overcome these interactions.
Step 3
What is the name of this type of molecule?
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Answer
Fullerene.
Step 4
Suggest one reason why the C₇₀ molecule is suitable for this use.
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C₇₀ is hollow, which allows it to act as a cage for transporting drugs within the body.
Step 5
Calculate the number of C₇₀ molecules that can be made from one mole of carbon atoms.
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Answer
To find the number of C₇₀ molecules from one mole of carbon, we use the equation:
