PAG 8.2 – Electrochemical cells 2 – Primrose Kitten

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PAG 8.2 – Electrochemical cells 2

Last updated: 12/03/2020

OCR-A A-Level Chemistry Redox and electrode potentials PAG 8.2 – Electrochemical cells 2

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Question 1 of 36

1. Question
What is one hazard when using copper(II) sulfate(VI) solution within an experiment?
- It is harmful if swallowed
- It is highly toxic
- It is highly flammable
- It is carcinogenic
Correct

Incorrect
Question 2 of 36

2. Question
What is one hazard when using copper(II) sulfate(VI) solution within an experiment?
- It can cause skin and eye irritation
- It is highly toxic
- It is highly flammable
- It is carcinogenic
Correct

Incorrect
Question 3 of 36

3. Question
What is one hazard when using iron(II) sulfate(VI) solution within an experiment?
- It can cause eye irritation
- It is highly toxic
- It is highly flammable
- It is carcinogenic
Correct

Incorrect
Question 4 of 36

4. Question
What is one hazard when using zinc sulfate(VI) solution within an experiment?
- It can cause eye irritation
- It is highly toxic
- It is highly flammable
- It is carcinogenic
Correct

Incorrect
Question 5 of 36

5. Question
What concentration of iron(II) sulfate(VI) is used?
- 1.0 mol dm $^{-3}$
- 2.0 mol dm $^{-3}$
- 3.0 mol dm $^{-3}$
- 4.0 mol dm $^{-3}$
Correct

Incorrect
Question 6 of 36

6. Question
What concentration of magnesium(II) sulfate(VI) is used?
- 1.0 mol dm $^{-3}$
- 2.0 mol dm $^{-3}$
- 3.0 mol dm $^{-3}$
- 4.0 mol dm $^{-3}$
Correct

Incorrect
Question 7 of 36

7. Question
What concentration of zinc(II) sulfate(VI) is used?
- 1.0 mol dm $^{-3}$
- 2.0 mol dm $^{-3}$
- 3.0 mol dm $^{-3}$
- 4.0 mol dm $^{-3}$
Correct

Incorrect
Question 8 of 36

8. Question
What concentration of copper(II) sulfate(VI) is used?
- 1.0 mol dm $^{-3}$
- 2.0 mol dm $^{-3}$
- 3.0 mol dm $^{-3}$
- 4.0 mol dm $^{-3}$
Correct

Incorrect
Question 9 of 36

9. Question
How many wires will be needed?
- 2
- 1
- 3
- 4
Correct

Incorrect
Question 10 of 36

10. Question
How many beakers will be needed?
- 2
- 1
- 3
- 4
Correct

Incorrect
Question 11 of 36

11. Question
What type of beaker should be used?
- 100 cm $^3$
- 50 cm $^3$
- 75 cm $^3$
- 250 cm $^3$
Correct

Incorrect
Question 12 of 36

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

Incorrect
Question 13 of 36

13. Question
How many measuring cylinders should be used?
- 2
- 1
- 3
- 4
Correct

Incorrect
Question 14 of 36

14. Question
What should the metal be cleaned with?
- Emery paper
- Polystyrene
- Tissue paper
- Acid
Correct

Incorrect
Question 15 of 36

15. Question
What should the metal be rinsed with?
- Distilled water
- Hydrochloric acid
- Ethanol
- Silver nitrate
Correct

Incorrect
Question 16 of 36

16. Question
How much of the metal sulfate should be used?
- 50 $cm^3$
- 100 $cm^3$
- 25 $cm^3$
- 150 $cm^3$
Correct

Incorrect
Question 17 of 36

17. Question
Where should the metal sulfate be held?
- Beaker
- Polystyrene cup
- Measuring cylinder
- Condenser
Correct

Incorrect
Question 18 of 36

18. Question
Where should the metal be held?
- Beaker
- Polystyrene cup
- Measuring cylinder
- Condenser
Correct

Incorrect
Question 19 of 36

19. Question
How should the salt bridge be handled?
- With tweezers
- With a stirrer
- With hands
- With a knife
Correct

Incorrect
Question 20 of 36

20. Question
Which of the following is the salt bridge made up of?
- Filter paper
- pH paper
- Tissue paper
- Emery paper
Correct

Incorrect
Question 21 of 36

21. Question
Which of the following is the salt bridge made up of?
- Potassium nitrate
- Sodium dichromate
- Silver nitrate
- Potassium dichromate
Correct

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Question 22 of 36

22. Question
What does the salt bridge connect together?
- Beakers
- Pieces of metal
- Measuring cylinders
- Voltmeters
Correct

Incorrect
Question 23 of 36

23. Question
What is used to measure potential difference?
- Voltmeter
- Thermometer
- pH probe
- Scales
Correct

Incorrect
Question 24 of 36

24. Question
What are the units for potential difference?
- V
- km
- mol
- J
Correct

Incorrect
Question 25 of 36

25. Question
What does a voltmeter measure?
- Potential difference
- Electricity
- Mass of a compound
- Power of a compound
Correct

Incorrect
Question 26 of 36

26. Question
Which of the following is a property of a salt bridge?
- Inert
- Very reactive
- Conducts electricity
- Very dense
Correct

Incorrect
Question 27 of 36

27. Question
What is the definition of an electrochemical cell?
- A device that generates a potential difference between electrodes
- A device that measures the voltage of a cell
- An electrical cell
- A cell that consists of two different types of metals
Correct

Incorrect
Question 28 of 36

28. Question
What is the electrode potential for half cell A?
- -1.38 V
- -0.37 V
- -2.51 V
- -0.82 V
Correct

Incorrect
Question 29 of 36

29. Question
What is the electrode potential for half cell B?
- -0.82 V
- -0.37 V
- -2.51 V
- -1.38 V
Correct

Incorrect
Question 30 of 36

30. Question
What is the electrode potential for half cell C?
- -0.37 V
- -0.82 V
- -2.51 V
- -1.38 V
Correct

Incorrect
Question 31 of 36

31. Question
What is the standard concentrations for half cells?
- 1.0 mol dm $^{-3}$
- 2.0 mol dm $^{-3}$
- 3.0 mol dm $^{-3}$
- 4.0 mol dm $^{-3}$
Correct

Incorrect
Question 32 of 36

32. Question
What is the standard temperature for half cells?
- 298 K
- 198 K
- 273 K
- 310 K
Correct

Incorrect
Question 33 of 36

33. Question
What is the standard pressure for half cells?
- 100 kPa
- 10 kPa
- 10 Pa
- 100 Pa
Correct

Incorrect
Question 34 of 36

34. Question
What are the standard units for the concentration of half cells?
- mol dm $^{-3}$
- mol dm $^3$
- mol dm $^{-1}$
- mol dm $^1$
Correct

Incorrect
Question 35 of 36

35. Question
What are the standard units for the temperature of half cells?
- K
- Pa
- °C
- °F
Correct

Incorrect
Question 36 of 36

36. Question
What are the standard units for the pressure of half cells?
- kPa
- atm
- mol
- K
Correct

Incorrect

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