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3 marksRedox Equilibria

CAPE Chemistry Unit 1 · 2010 · Paper 2 · Question 2(b)(iv)

Figure 1 is a diagram of an electrochemical cell consisting of a standard copper electrode and a standard aluminium electrode, represented by the notation, Al(s) | Al3+(aq) || Cu2+(aq) | Cu(s).

Use the information in your Data Booklet to calculate the standard cell potential, Ecell, for the electrochemical cell in Figure 1.

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Other parts of this question

  1. 2(a)(i)Define EACH of the following terms: Standard electrode potential of a half-cell[2 marks]
  2. 2(a)(ii)Define EACH of the following terms: Standard cell potential of an electrochemical cell[2 marks]
  3. 2(b)(i)a)On the diagram in Figure 1, label the ions in Solution A and Solution B[5 marks]
  4. 2(b)(i)b)On the diagram in Figure 1, label the salt bridge[1 mark]
  5. 2(b)(i)c)On the diagram in Figure 1, label the cathode and anode[1 mark]
  6. 2(b)(i)d)On the diagram in Figure 1, label the direction of electron flow.[1 mark]
  7. 2(b)(ii)State what would be observed at the cathode after the electrochemical cell in Figure 1 has been running for a few hours.[1 mark]
  8. 2(b)(iii)State the experimental conditions used in the preparation of the cell in Figure 1. Temperature, Concentration of Solutions A and B[2 marks]

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