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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.
Answer
Diamond has a giant covalent structure, often referred to as a macromolecular lattice. Each carbon atom in diamond forms four covalent bonds with other carbon atoms, creating a rigid three-dimensional structure. This extensive network of bonds gives diamond its remarkable hardness.
Step 2
Step 4
Step 5
Calculate the number of C₇₀ molecules that can be made from one mole of carbon atoms.
Answer
To find the number of C₇₀ molecules from one mole of carbon atoms, we use the equation:
[ ext{moles of } C_{70} \text{ molecules} = \frac{1}{70} ext{ } ]
So,
[ \text{molecules} = \frac{1}{70} \times 6.02 \times 10^{23} \approx 8.6 \times 10^{21} \text{ molecules} ]