Use the following information to answer the next three questions Electrowinning of Copper Battery Thin sheet of pure copper (Cathode) Thick block of impure Cu (Anode) - Tank Cu2+ Acidified copper sulphate solution (Electrolyte) Cu2+ - Impurities (Anode mud) The cell shown above is used to purify copper. At one electrode, impure copper is converted into copper(II) ions, which are later converted into copper solid of high purity at the other electrode. 6. The plating of pure copper will occur at the O cathode where oxidation occurs. O cathode where reduction occurs. O anode where reduction occurs. O anode where oxidation occurs. 7. During the operation of this cell O the total energy of the system decreases. O the pH of the electrolyte increases. O the predicted net cell potential is 0.00 V.

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Chapter1: Chemical Foundations
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Use the following information to answer the next three questions
Electrowinning of Copper
Battery
Thin sheet of pure
copper (Cathode)
Thick block of impure
Cu (Anode)
- Tank
Cu2+
Acidified copper
sulphate solution
(Electrolyte)
Cu2+
Impurities
(Anode mud)
The cell shown above is used to purify copper. At one electrode, impure copper is
converted into copper(II) ions, which are later converted into copper solid of high
purity at the other electrode.
6. The plating of pure copper will occur at the
cathode where oxidation occurs.
O cathode where reduction occ
occurs.
O anode where reduction occurs.
O anode where oxidation occurs.
7. During the operation of this cell
O the total energy of the system decreases.
O the pH of the electrolyte increases.
O the predicted net cell potential is 0.00 V.
Transcribed Image Text:Use the following information to answer the next three questions Electrowinning of Copper Battery Thin sheet of pure copper (Cathode) Thick block of impure Cu (Anode) - Tank Cu2+ Acidified copper sulphate solution (Electrolyte) Cu2+ Impurities (Anode mud) The cell shown above is used to purify copper. At one electrode, impure copper is converted into copper(II) ions, which are later converted into copper solid of high purity at the other electrode. 6. The plating of pure copper will occur at the cathode where oxidation occurs. O cathode where reduction occ occurs. O anode where reduction occurs. O anode where oxidation occurs. 7. During the operation of this cell O the total energy of the system decreases. O the pH of the electrolyte increases. O the predicted net cell potential is 0.00 V.
Use the following information to answer the next question
A student used a 6.31 x 10-2 mol/L aqueous iodine solution to determine the
concentration of hydroxide ions in a sample of industrial effluent. In the experiment,
10.00 ml samples of effluent were titrated until an endpoint is reached. The data
collected is shown below.
Trial number
1
3
4
5
Final Buret
17.55
35.65
26.40
42.65
16.85
reading (mL)
Initial buret
0.30
17.55
10.05
26.40
0.55
reading (mL)
Volume of titrant
(mL)
Final colour
Dark
Dark
brown
Light
brown
Light
brown
Light
brown
brown
19. According to the data collected the concentration of hydroxide ions in the effluent is
O 0.103 mol/L
O 0.206 mol/L
O 0.411 mol/L
O 0.774 mol/L
Transcribed Image Text:Use the following information to answer the next question A student used a 6.31 x 10-2 mol/L aqueous iodine solution to determine the concentration of hydroxide ions in a sample of industrial effluent. In the experiment, 10.00 ml samples of effluent were titrated until an endpoint is reached. The data collected is shown below. Trial number 1 3 4 5 Final Buret 17.55 35.65 26.40 42.65 16.85 reading (mL) Initial buret 0.30 17.55 10.05 26.40 0.55 reading (mL) Volume of titrant (mL) Final colour Dark Dark brown Light brown Light brown Light brown brown 19. According to the data collected the concentration of hydroxide ions in the effluent is O 0.103 mol/L O 0.206 mol/L O 0.411 mol/L O 0.774 mol/L
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