Determine the mass of deposited copper from the data in Table 8b-1. These will serve as the experimental values. For the experimental data:Table 8b-1. Data on the electrolysis of aqueous copper(II) sulfate.ParameterSetup 114.02Black-colored rod14.03Part of electrode thatwassubmergedbecame a little darker;bubble formation wasobservedduringelectrolysis; electrolytesolution became acidicafter electrolysis.15.26Black-colored rod15.8415.16Part of electrode thatwassubmergedbecame a little darker;bubble formation wasobservedduringelectrolysis; electrolytesolution became acidicafter electrolysis.15.68Black-colored rod16.1316.58Reddish brown solidsReddish brown solidsReddish brown solidsdeposited on the deposited on the deposited on thesurfacesurfacesurfaceInitial mass of anode (g)Initial appearance of anodeFinal mass of anode (g)Observations at the anodeInitial mass of cathode (g)Initial appearance of cathodeFinal mass of cathode (g)Final appearance of cathodeSetup 213.85Black-colored rod13.85Part of electrode thatwas submergedbecame a little darker;bubble formation wasobserved duringelectrolysis; electrolytesolution became acidicafter electrolysis.15.11Black-colored rodSetup 315.15Black-colored rod

Mass of deposited copper has to be computed from the given initial mass of cathode and the final…

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Determine the mass of deposited copper from the data in Table 8b-1

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter22: Bulk Electrolysis: Electrogravimetry And Coulometry

Section: Chapter Questions

Problem 22.21QAP

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Question

Determine the mass of deposited copper from the data in Table 8b-1. These will serve as the experimental values.

For the experimental data:
Table 8b-1. Data on the electrolysis of aqueous copper(II) sulfate.
Parameter
Setup 1
14.02
Black-colored rod
14.03
Part of electrode that
was
submerged
became a little darker;
bubble formation was
observed
during
electrolysis; electrolyte
solution became acidic
after electrolysis.
15.26
Black-colored rod
15.84
15.16
Part of electrode that
was
submerged
became a little darker;
bubble formation was
observed
during
electrolysis; electrolyte
solution became acidic
after electrolysis.
15.68
Black-colored rod
16.13
16.58
Reddish brown solids
Reddish brown solids
Reddish brown solids
deposited on the deposited on the deposited on the
surface
surface
surface
Initial mass of anode (g)
Initial appearance of anode
Final mass of anode (g)
Observations at the anode
Initial mass of cathode (g)
Initial appearance of cathode
Final mass of cathode (g)
Final appearance of cathode
Setup 2
13.85
Black-colored rod
13.85
Part of electrode that
was submerged
became a little darker;
bubble formation was
observed during
electrolysis; electrolyte
solution became acidic
after electrolysis.
15.11
Black-colored rod
Setup 3
15.15
Black-colored rod

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