Use the following information to answer question 19. Students observed the Hoffman apparatus shown below while a concentrated solution of sodium chloride, NaCl(aq), was electrolyzed. The students observed bubbling around each electrode and also observed that a smaller volume of gas is collected in the tube above the anode than in the tube above the cathode. Electrolysis of NaCl(aq) Row 6.0 V A. B. C. D. Power supply Gas- Solution- Pt(s)- Oxygen Oxygen Hydrogen Hydrogen Cathode Gas Produced at the Cathode 19. Which of the following rows identifies the gases produced at each electrode? Gas -Solution Chlorine Hydrogen Chlorine Oxygen Gas Produced at the Anode Pt(s) Anode

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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Use the following information to answer question 19.
Students observed the Hoffman apparatus shown below while a concentrated solution of
sodium chloride, NaCl(aq), was electrolyzed. The students observed bubbling around each
anode than in the tube above the cathode.
electrode and also observed that a smaller volume of gas is collected in the tube above the
(00:4
Row
6.0 V
A.
B.
C.
D.
Power
supply
Electrolysis of NaCl(aq)
Gas-
Solution-
Oxygen
Oxygen
Hydrogen
Hydrogen
Pt(s)
Cathode
Gas Produced at
the Cathode
19. Which of the following rows identifies the gases produced at each electrode?
Gas
Gas Produced at
the Anode
Chlorine
Hydrogen
Chlorine
Oxygen
Solution
90
Pt(s)
Anode
H
Transcribed Image Text:Use the following information to answer question 19. Students observed the Hoffman apparatus shown below while a concentrated solution of sodium chloride, NaCl(aq), was electrolyzed. The students observed bubbling around each anode than in the tube above the cathode. electrode and also observed that a smaller volume of gas is collected in the tube above the (00:4 Row 6.0 V A. B. C. D. Power supply Electrolysis of NaCl(aq) Gas- Solution- Oxygen Oxygen Hydrogen Hydrogen Pt(s) Cathode Gas Produced at the Cathode 19. Which of the following rows identifies the gases produced at each electrode? Gas Gas Produced at the Anode Chlorine Hydrogen Chlorine Oxygen Solution 90 Pt(s) Anode H
Use the following information to answer questions 17 and 18.
At one of the electrodes of an aluminium-air cell, moist air is bubbled through
a sodium hydroxide solution. The half-reaction represented by the equation below occurs.
Oz(g) + 2H,O(l) + 4e → 4OH (aq)
i
17. The other half-reaction involving the aluminium electrode, Al(s), will occur at the
and the type of cell is
ii
(3)0
The statement above is completed by the information in row
Row
A.
B.
C.
D.
i
anode
anode
cathode
cathode
A. -2.06 V
B.
-1.26 V
C.
+1.26 V
D.
+2.06 V
ii
voltaic
electrolytic
voltaic
electrolytic
18. If the half-reaction given above was assigned a standard reduction potential of zero, then
would be
the standard reduction potential of the half-reaction involving the aluminium electrode
Transcribed Image Text:Use the following information to answer questions 17 and 18. At one of the electrodes of an aluminium-air cell, moist air is bubbled through a sodium hydroxide solution. The half-reaction represented by the equation below occurs. Oz(g) + 2H,O(l) + 4e → 4OH (aq) i 17. The other half-reaction involving the aluminium electrode, Al(s), will occur at the and the type of cell is ii (3)0 The statement above is completed by the information in row Row A. B. C. D. i anode anode cathode cathode A. -2.06 V B. -1.26 V C. +1.26 V D. +2.06 V ii voltaic electrolytic voltaic electrolytic 18. If the half-reaction given above was assigned a standard reduction potential of zero, then would be the standard reduction potential of the half-reaction involving the aluminium electrode
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