Long answer·Standard multi-step (3/5)·No calculator
Difficulty guide
The label describes the problem, not your ability.
1/5 - Foundational
Warm-up setup; checks one basic idea.
2/5 - Routine exam skill
Normal syllabus skill; usually one main rule or interpretation.
3/5 - Standard multi-step
Exam-style problem with multiple steps or a common trap.
4/5 - Hard exam skill
High-end exam problem; combines methods carefully.
5/5 - Challenge
Stretch problem beyond normal exam pressure.
Question
A current of is passed through solution using copper electrodes for . Use and .
Total: 4 marks
(a) Calculate the charge passed. (1 mark)
(b) Find the mass of copper deposited at the cathode. (2 marks)
(c) State the mass change at the copper anode. (1 mark)
Something wrong with this item?