Gce Model Questions Vol1 2020 Chemistry Question 44
Practice objective / multiple choice question 44 from the 2020 Gce Model Questions Vol1 Chemistry examination.
A copper plating cell operates with a current of 2.00 A for 30 minutes. The current efficiency for copper deposition is 85 %. The molar mass of copper is 63.55 g mol⁻¹ and copper is deposited as \(\mathrm{Cu^{2+} + 2e^- \rightarrow Cu(s)}\). (a) Calculate the mass of copper deposited on the cathode. (b) If the plating solution initially contains 250 mL of 0.10 M \(\mathrm{Cu^{2+}}\), determine the new \(\mathrm{Cu^{2+}}\) concentration after plating, assuming the decrease in volume is negligible.
Answer Options
About This Question
This is Gce Model Questions Vol1 2020 Chemistry Question 44. It is one of the objective questions from the 2020 Gce Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
Master the Exam!
You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.