GCSE Chemistry
Can someone help me with this question; figure 4 shows the apparatus a student used to electrolyse the copper chloride solution.
The student measured the mass of copper deposited on the negative electrode after 60 minutes and compared the mass deposited with the expected value
-Suggest two reasons why the mass deposited was different from the expected value
The student measured the mass of copper deposited on the negative electrode after 60 minutes and compared the mass deposited with the expected value
-Suggest two reasons why the mass deposited was different from the expected value
Original post by Da14a
Well we can't see the apparatus but we could still propose an answer
1. 60 minutes could have been too short a time for the electrolysis to run until completion meaning the mass deposited would be lower than expected. (assuming expected value is not for 60 minutes)
1. 60 minutes could have been too short a time for the electrolysis to run until completion meaning the mass deposited would be lower than expected. (assuming expected value is not for 60 minutes)
sorry, I forgot to attach a picture! This was still really helpful, thanks
yeah how about the second one
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