Learners are provided with the following apparatus and a solution to assemble an electrochemical cell - NSC Technical Sciences - Question 5 - 2023 - Paper 2
Question 5
Learners are provided with the following apparatus and a solution to assemble an electrochemical cell.
Carbon rods
Beaker
Copper (II) chloride (aq)
Cell
Conduct... show full transcript
Worked Solution & Example Answer:Learners are provided with the following apparatus and a solution to assemble an electrochemical cell - NSC Technical Sciences - Question 5 - 2023 - Paper 2
Step 1
5.1 What TYPE of an electrochemical cell can be assembled using ALL of the apparatus above and the solution?
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Answer
The type of electrochemical cell that can be assembled using all the provided apparatus and the solution is an electrolytic cell.
Step 2
5.2 Write down TWO components in the list above to justify the answer to QUESTION 5.1.
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Answer
The two components that justify the answer are: 1. Carbon rods 2. Copper (II) chloride (aq).
Step 3
5.3.1 Which ONE of the electrodes will be the ANODE? Write down only ELECTRODE CONNECTED TO POSITIVE TERMINAL or ELECTRODE CONNECTED TO NEGATIVE TERMINAL.
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The electrode that will be the anode is the ELECTRODE CONNECTED TO POSITIVE TERMINAL.
Step 4
5.3.2 Write down the half-reaction taking place at the anode.
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The half-reaction taking place at the anode is:
Cu2+(aq)+2e−→Cu(s)
Step 5
5.3.3 Write down the NAME or FORMULA of the product formed at the anode.
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The product formed at the anode is Copper (Cu).
Step 6
5.4 Write down THREE examples of alternate energies.
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Three examples of alternate energies are: 1. Hydropower 2. Biodesel 3. Solar energy.
