2. Sodium metal is produced commercially by the electrolysis of molten sodium chloride. The by-product of the reaction is chiorine gas. (a) Write the oxidation and reduction half-reactions for the electrolysis of molten sodium chloride. (b) Identify the substance that is oxidized and the substance that is reduced. (c) Write the balanced chemical equation for the overall reaction.

Chemical Principles in the Laboratory
11th Edition
ISBN:9781305264434
Author:Emil Slowinski, Wayne C. Wolsey, Robert Rossi
Publisher:Emil Slowinski, Wayne C. Wolsey, Robert Rossi
Chapter32: Voltaic Cell Measurements
Section: Chapter Questions
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2)
Figure 1. Petri Dish Electrolysis. to
sboon
Pre-Lab Questions
1. Complete the following table summarizing the general properties of the electrodes in an electrolytic cell.
Electrode
Oxidation or Reduction
Sign of Electrode
Anode
Cathode
2. Sodium metal is produced commercially by the electrolysis of molten sodium chloride. The by-product of the reaction
is chiorine gas. (a) Write the oxidation and reduction half-reactions for the electrolysis of molten sodium chloride. (b)
Identify the substance that is oxidized and the substance that is reduced. (c) Write the balanced chemical equation for the
overall reaction.
3. Sodium metal is easily oxidized-it is a very reactive metal. Sodium reacts spontaneously with water at room temperature
to give sodium hydroxide and hydrogen gas. Would you expect to observe sodium metal in the electrolysis of aqueous
sodium chloride? Explain.
Materials
Copper(II) bromide solution, CuBr,, 0.2 M, 8 mL
Battery, 9-V
Phenolphthalein indicator solution, 0.5%, 1 mL
Battery cap with alligator clip leads
Transcribed Image Text:Figure 1. Petri Dish Electrolysis. to sboon Pre-Lab Questions 1. Complete the following table summarizing the general properties of the electrodes in an electrolytic cell. Electrode Oxidation or Reduction Sign of Electrode Anode Cathode 2. Sodium metal is produced commercially by the electrolysis of molten sodium chloride. The by-product of the reaction is chiorine gas. (a) Write the oxidation and reduction half-reactions for the electrolysis of molten sodium chloride. (b) Identify the substance that is oxidized and the substance that is reduced. (c) Write the balanced chemical equation for the overall reaction. 3. Sodium metal is easily oxidized-it is a very reactive metal. Sodium reacts spontaneously with water at room temperature to give sodium hydroxide and hydrogen gas. Would you expect to observe sodium metal in the electrolysis of aqueous sodium chloride? Explain. Materials Copper(II) bromide solution, CuBr,, 0.2 M, 8 mL Battery, 9-V Phenolphthalein indicator solution, 0.5%, 1 mL Battery cap with alligator clip leads
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