A student investigated how the mass of silver deposited at the negative electrode (cathode) changed when the electric current was varied during the electrolysis of silver nitrate solution. The current was passed through the solution for exactly 10 minutes in each test.
The results are shown in Table 1.
| Current (A) | Mass of silver deposited (g) |
|---|---|
| 0.0 | 0.00 |
| 0.2 | 0.13 |
| 0.4 | 0.27 |
| 0.6 | 0.40 |
| 0.8 | 0.54 |
| 1.0 | 0.67 |
State and explain the trend shown in these results.
Practise Edexcel GCSE Chemistry Electrolytic processes with exam-style questions for Foundation and Higher tier. 100 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.