Question 1 of 1
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Question 1
1(a)
A 0.250 g sample of calcium carbonate, CaCO₃, reacts completely with excess hydrochloric acid. Calculate the amount, in mol, of CaCO₃ in the sample. Use Aᵣ: Ca = 40.1, C = 12.0, O = 16.0.
[2 marks]
Select a question diagram to draw on:
Spec: 2.1.3(e)(i)
Reasoning
1(b)
The reaction is CaCO₃ + 2HCl → CaCl₂ + H₂O + CO₂. Deduce the amount, in mol, of CO₂ formed. Use your answer to part (a).
[2 marks]
Select a question diagram to draw on:
Spec: 2.1.2(b), 2.1.3(g)
Reasoning
1(c)
At room temperature and pressure, one mole of gas occupies 24.0 dm³. Calculate the volume, in cm³, of CO₂ formed. Use your answer to part (b).
[3 marks]
Select a question diagram to draw on:
Spec: 2.1.3(e)(ii), 2.1.3(g)
Reasoning