Initial mass of anode (g) 14.02 13.85 15.15 Initial appearance of anode Black-colored rod Black-colored rod Black-colored rod Final mass of anode (g) 14.03 13.85 15.16 Observations at the anode Part of electrode that was submerged became a little darker; bubble formation was observed during electrolysis; electrolyte solution became acidic after electrolysis. Part of electrode that was submerged became a little darker; bubble formation was observed
Initial mass of anode (g) 14.02 13.85 15.15 Initial appearance of anode Black-colored rod Black-colored rod Black-colored rod Final mass of anode (g) 14.03 13.85 15.16 Observations at the anode Part of electrode that was submerged became a little darker; bubble formation was observed during electrolysis; electrolyte solution became acidic after electrolysis. Part of electrode that was submerged became a little darker; bubble formation was observed
Principles of Instrumental Analysis
7th Edition
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Chapter24: Coulometry
Section: Chapter Questions
Problem 24.4QAP: Halide ions can he deposited at a silver anode, the reaction being Ag(s) + X- AgX(s) +e- Suppose...
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Question
| Parameter | Setup 1 | Setup 2 | Setup 3 |
| Initial mass of anode (g) | 14.02 | 13.85 | 15.15 |
| Initial appearance of anode | Black-colored rod | Black-colored rod | Black-colored rod |
| Final mass of anode (g) | 14.03 | 13.85 | 15.16 |
| Observations at the anode | Part of electrode that was submerged became a little darker; bubble formation was observed during |
Part of electrode that was submerged became a little darker; bubble formation was observed during electrolysis; electrolyte solution became acidic after electrolysis. | Part of electrode that was submerged became a little darker; bubble formation was observed during electrolysis; electrolyte solution became acidic after electrolysis. |
| Initial mass of cathode (g) | 13.24 | 14.31 | 16.22 |
| Initial appearance of cathode | Black-colored rod | Black-colored rod | Black-colored rod |
| Final mass of cathode (g) | 13.59 | 14.68 | 17.01 |
| Final appearance of cathode | Reddish brown solids deposited on the surface | Reddish brown solids deposited on the surface | Reddish brown solids deposited on the surface |
a. Determine the mass of deposited copper (see data from table).
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