Quelpr
1 markRedox Equilibria

CAPE Chemistry Unit 1 · 2007 · Paper 2 · Question 2(a)(vi)

A student is attempting to find the cell potential of a Daniell (Zn/Cu) cell.

Write the equation to represent the cell reaction.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 2(a)(i)Outline the experimental steps he has to follow to obtain a reading of approximately 1.10 V on his voltmeter.[5 marks]
  2. 2(a)(ii)Write the ionic half equation for the reaction occurring at EACH of the electrodes.[2 marks]
  3. 2(a)(iii)Identify the anode and the cathode.[1 mark]
  4. 2(a)(iv)Explain the direction of electron flow.[1 mark]
  5. 2(a)(v)Write the cell diagram.[1 mark]
  6. 2(b)Use the Eº value for each electrode (in the data booklet) to determine the Eºcell.[2 marks]
  7. 2(c)Suggest TWO changes which could be made to the cell in (a) to cause the cell potential to be greater than 1.10V.[2 marks]

More practice: the rest of this paper · more Redox Equilibria questions · all CAPE Chemistry Unit 1 past papers