CH-1659
Surface area
Chemistry · Secondary 4 · Hard · Surface area
Two experiments are carried out to study the rate of reaction between calcium carbonate and dilute hydrochloric acid.
Experiment 1: 3 g of large marble chips with 40 cm³ of 2.0 mol/dm³ HCl.
Experiment 2: 3 g of powdered marble with 40 cm³ of 2.0 mol/dm³ HCl.
Which statement about the time taken and the final volume of carbon dioxide is correct?
Experiment 1: 3 g of large marble chips with 40 cm³ of 2.0 mol/dm³ HCl.
Experiment 2: 3 g of powdered marble with 40 cm³ of 2.0 mol/dm³ HCl.
Which statement about the time taken and the final volume of carbon dioxide is correct?
- Experiment 1 finishes sooner and produces more CO₂.
- Experiment 1 finishes sooner but both produce the same final CO₂ volume.
- Experiment 2 finishes sooner but both produce the same final CO₂ volume.
- Experiment 2 finishes later and produces less CO₂.
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