PAG 9.2 – The rate of reaction of calcium carbonate and hydrochloric acid

Last updated: 11/03/2020

OCR-A A-Level Chemistry Rates of reaction PAG 9.2 – The rate of reaction of calcium carbonate and hydrochloric acid

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Question 1 of 36

1. Question
Write the equation for the reaction between calcium carbonate and hydrochloric acid?
- $CaCO_3(s) + 2HCl(aq) -> CaCl_2(aq) + CO_2(g) + H_2O(l)$
- $CaCO_3(s) + 3HCl(aq) -> CaCl_2(aq) + CO_2(g) + H_2O(l)$
- $CaCO_3(s) + HCl(aq) -> CaCl_2(aq) + CO_2(g) + H_2O(l)$
- $CaCO_3(s) + 2HCl(aq) -> CaCl_2(aq) + O_2(g) + H_2O(l)$
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Question 2 of 36

2. Question
What concentration of hydrochloric acid should be used?
- 0.5 mol dm $^{-3}$
- 0.2 mol dm $^{-3}$
- 1.5 mol dm $^{-3}$
- 2.0 mol dm $^{-3}$
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Question 3 of 36

3. Question
What concentration of hydrochloric acid should be used?
- 2.5 mol dm $^{-3}$
- 0.2 mol dm $^{-3}$
- 1.5 mol dm $^{-3}$
- 2.0 mol dm $^{-3}$
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Question 4 of 36

4. Question
What type of conical flask should be used?
- 100 cm $^3$
- 200 cm $^3$
- 50 cm $^3$
- 250 cm $^3$
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Question 5 of 36

5. Question
What type of measuring cylinder should be used?
- 25 cm $^3$
- 100 cm $^3$
- 50 cm $^3$
- 150 cm $^3$
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Question 6 of 36

6. Question
What type of gas syringe should be used?
- 100 cm $^3$
- 25 cm $^3$
- 50 cm $^3$
- 150 cm $^3$
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Question 7 of 36

7. Question
How much hydrochloric acid should be measured out during part 1?
- 20 cm $^3$
- 10 cm $^3$
- 30 cm $^3$
- 40 cm $^3$
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Question 8 of 36

8. Question
Which concentration of hydrochloric acid should be used during part 1?
- 2.0 mol dm $^{-3}$
- 2.5 mol dm $^{-3}$
- 1.5 mol dm $^{-3}$
- 0.5 mol dm $^{-3}$
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Question 9 of 36

9. Question
Which concentration of hydrochloric acid should be used during part 1?
- 0.5 mol dm $^{-3}$
- 1.5 mol dm $^{-3}$
- 2.0 mol dm $^{-3}$
- 2.5 mol dm $^{-3}$
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Question 10 of 36

10. Question
How much hydrochloric acid should be measured out during part 2?
- 10 cm $^3$
- 20 cm $^3$
- 30 cm $^3$
- 40 cm $^3$
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Question 11 of 36

11. Question
To how many decimal places should the balance used be to?
- 2
- 1
- 3
- 4
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Question 12 of 36

12. Question
How many parts are there to this experiment?
- 2
- 1
- 3
- 4
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Question 13 of 36

13. Question
What type of flask should be used?
- Buchner flask
- Pear-shaped flask
- Round-bottomed flask
- Volumetric flask
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Question 14 of 36

14. Question
What type of flask should be used?
- Conical flask
- Pear-shaped flask
- Round-bottomed flask
- Volumetric flask
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Question 15 of 36

15. Question
How many marble chips should be measured out during part 1?
- 10 grams
- 12 grams
- 2 grams
- 5 grams
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Question 16 of 36

16. Question
Where should the marble chips be added to during part 1?
- Conical flask
- Gas syringe
- Buchner flask
- Beaker
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Question 17 of 36

17. Question
During part 1, what interval should the mass of the marble chips be measured in initially?
- 10 seconds
- 20 seconds
- 30 seconds
- 40 seconds
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Question 18 of 36

18. Question
During part 1, what interval should the mass of the marble chips be measured in once the reaction slows down?
- 30 seconds
- 20 seconds
- 10 seconds
- 40 seconds
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Question 19 of 36

19. Question
What plug should be used for the conical flask?
- Cotton wool
- Paper
- Rubber
- Glass
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Question 20 of 36

20. Question
Where should the marble chips be added to during part 2?
- Buchner flask
- Gas syringe
- Conical flask
- Beaker
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Question 21 of 36

21. Question
How much marble chips should be measured out during part 2?
- 10 grams
- 5 grams
- 12 grams
- 2 grams
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Question 22 of 36

22. Question
During part 2, what interval should the volume of gas be measured in initially?
- 10 seconds
- 20 seconds
- 30 seconds
- 40 seconds
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Question 23 of 36

23. Question
During part 2, what interval should the volume of gas be measured in once the reaction slows down?
- 30 seconds
- 20 seconds
- 10 seconds
- 40 seconds
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Question 24 of 36

24. Question
What is the first half-life for the graph of the mass of the marble chips against time?
- 20 seconds
- 18 seconds
- 24 seconds
- 33 seconds
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Question 25 of 36

25. Question
What is the second half-life for the graph of the mass of the marble chips against time?
- 18 seconds
- 20 seconds
- 24 seconds
- 33 seconds
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Question 26 of 36

26. Question
What is the third half-life for the graph of the mass of the marble chips against time?
- 24 seconds
- 20 seconds
- 18 seconds
- 33 seconds
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Question 27 of 36

27. Question
What is the first half-life for the graph of the concentration against time?
- 18 seconds
- 48 seconds
- 24 seconds
- 33 seconds
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Question 28 of 36

28. Question
What is the second half-life for the graph of the concentration against time?
- 33 seconds
- 48 seconds
- 24 seconds
- 18 seconds
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Question 29 of 36

29. Question
What is the third half-life for the graph of the concentration against time?
- 48 seconds
- 33 seconds
- 24 seconds
- 18 seconds
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Question 30 of 36

30. Question
What order is the reaction between the marbles and hydrochloric acid?
- First order
- Zero order
- Fourth order
- Third order
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Question 31 of 36

31. Question
What is the rate equation for this reaction?
- Rate = k[HCl(aq)]
- Rate = k[HCl(aq)] $^2$
- Rate = k
- Rate = [HCl(aq)]
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Question 32 of 36

32. Question
What are the moles of hydrochloric for part 1?
- 0.040 mol
- 0.020 mol
- 0.050 mol
- 0.001 mol
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Question 33 of 36

33. Question
What was the marble mass loss for part 1?
- 0.72 grams
- 1.82 grams
- 1.92 grams
- 1.99 grams
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Question 34 of 36

34. Question
What was the volume of gas collected in part 2?
- 55 cm $^3$
- 15 cm $^3$
- 24 cm $^3$
- 35 cm $^3$
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Question 35 of 36

35. Question
What are the moles of hydrochloric for part 2?
- 0.01 mol
- 0.02 mol
- 0.03 mol
- 0.04 mol
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Question 36 of 36

36. Question
Describe the shape of the graph showing mass against time and concentration against time.
- Negative
- Positive
- Steady
- No shape
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