An important industrial reaction is the electrolysis of brine to form chlorine and sodium hydroxide. At...
An important industrial reaction is the electrolysis of brine to form chlorine and sodium hydroxide. At one of the electrodes, chloride ions are oxidized to form chlorine. The overall reaction is:
2NaCl + 2H2O à 2NaOH +Cl2 + H2
A. Determine the electrode reactions (i.e., oxidation and reduction reactions).
B. Identify the anode and cathode as well as their signs (i.e., positive and negative electrode).
C. Determine the direction of current flow.
D. Calculate the standard cell potential.
Homework Answers
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An important industrial reaction is the electrolysis of brine to
form chlorine and sodium hydroxide. At...
Name: Electrochemistry and Equivalent Mass Figure 4: Electrolysis of NaCl(a) "brine" solution. 4. Refer to...
Name: Electrochemistry and Equivalent Mass Figure 4: Electrolysis of NaCl(a) "brine" solution. 4. Refer to figure 4, an illustration of the electrolysis of a NaCl(aq) solution, called a brine". This method is used to manufacture chlorine gas and sodium hydroxide. Chlorine is widely used to purify water, as a disinfectant, and in the making of important compounds such as chloroform, a compound used in the production of Teflon. Chloride ions are oxidized in the anode half-cell and water is reduced...
The following equation describes the chloralkali process, an industrial process for the electrolysis of sodium chloride...
The following equation describes the chloralkali process, an industrial process for the electrolysis of sodium chloride solutions. 2NaCl(aq) + 2H2O(1) --> 2NaOH(aq) + H2(g) + Cl2(g) How long will it take to prepare 0.503 moles of Cl2(g) by the electrolysis of concentrated sodium chloride, if 0.376 A are passed through the solution? Express your answer to the nearest number of minutes. Your Answer: Consider the following cell: Pt(s) Sn2+(aq, 0.40 M), Sn4+(aq,0.10 M) || Sn4+(aq,0.030 M), Sn2+(aq,0.010 M)|Pt(s) If the...
Electrolysis
An industrial process referred to as the Downs cell converts molten sodium chloride into its constituent elements through electrolysis. The cell consists of a mixture (40%) of NaCl in CaCl2 (60%) at 600°C. Calcium ions do not participate in the reaction. The graphite anode is encircled by a steel cathode. Sodium floats over the denser electrolyte and is conveyed to a reservoir while chlorine gas escapes through a vertical pipe.[10]a. Identify the oxidizing and the reducing agent (1)b. Draw a...
The electrolysis of a concentrated sodium chloride solution would produce? a. sodium metal at the cathode...
The electrolysis of a concentrated sodium chloride solution would produce? a. sodium metal at the cathode b, sodium metal at the anode c. hydrogen gas at the cathode d. chlorine gas at the cathode A student makes a voltaic cell by filling one small vessel with 1.0 M Cu+2 with a copper electrode and another small vessel with 1.0 M Zn+2 and a zinc electrode but has nothing for a salt bridge. The student then decides that since there is...
Electrolytic cells use electricity to cause a nonspontaneous redox reaction to occur. An electrolytic cell is...
Electrolytic cells use electricity to cause a nonspontaneous redox reaction to occur. An electrolytic cell is constructed using the following components: . a power source, such as a battery, • the substance that will undergo electrolysis, and • two inert electrodes (usually platinum), which serve as the electrical connection between the power source and the substance undergoing electrolysis. As with any cell, oxidation occurs at the anode and reduction occurs at the cathode. The oxidation of water, which produces oxygen...
11. During the electrolysis of aqueous KCl solution using inert electrodes, gaseous hydrogen is evolved at...
11. During the electrolysis of aqueous KCl solution using inert electrodes, gaseous hydrogen is evolved at one electrode and gaseous chlorine at the other electrode. The solution around the electrode at which hydrogen gas is evolved becomes basic as the electrolysis proceeds. Which of the following responses describe or are applicable to the #cathode and the reaction that occurs at the cathode? (1) the positive electrode (2) the negative electrode (3) 2 C Cl2 + 2 e (4) Cl2 +...
Refer to this table of reduction potentials to answer the questions. Reduction half-reaction Potential (V) +2.87...
Refer to this table of reduction potentials to answer the questions. Reduction half-reaction Potential (V) +2.87 Electrolytic cells use electricity to cause a nonspontaneous redox reaction to occur. An electrolytic cell is constructed using the following components: • a power source, such as a battery, • the substance that will undergo electrolysis, and • two inert electrodes (usually platinum), which serve as the electrical connection between the power source and the substance undergoing electrolysis. As with any cell, oxidation occurs...
13. What reaction occurs at the anode during the electrolysis of molten silver chloride? A. AgCl(1)...
13. What reaction occurs at the anode during the electrolysis of molten silver chloride? A. AgCl(1) ► Ag" (l) + CE(1) B. Ag (l) +e → Ag(1) C. Ag() ► Ag () + D. 2CH(1) Cl2(g) + 2e E. Cl2(g) + 2e → 201(1) 14. One of the differences between a voltaic cell and an electrolytic cell (where electrolysis occurs) is that in an electrolytic cell: A. electrical energy is supplied from an outside energy source to drive a nonspontaneous...
Post Lecture Homework Chapter 19 Electrolysis of Aqueous Salts < 13of15 Electrolytic cells use el...
Post Lecture Homework Chapter 19 Electrolysis of Aqueous Salts < 13of15 Electrolytic cells use electricity to cause a nonspontaneous redox reaction to occur. An electrolytic cell is constructed using the following components a power source, such as a battery Review | Constants Periodic Table the substance that will undergo electrolysis, and two inert electrodes (usually platinum), which serve as the electrical connection between the power source and the substance undergoing electrolysis. Refer to this table of reduction s to answer...
Please show all work step by step and final answer. Electrolysis in Aqueous Solutions -- Overvoltage...
Please show all work step by
step and final answer.
Electrolysis in Aqueous Solutions -- Overvoltage Refer to data from a table of standard reduction potentials for common half-reactions and/or the following half-reaction to answer the questions below. 52082- + 2e → 25042- E° = 2.01 v During the electrolysis of an aqueous solution of Na2SO4, which reaction occurs at the (platinum) cathode? 2H20 + 2e - H2 + 20H SO42- + 4H+ + 2 H2O + H2SO3 2H20 0...
Name: Electrochemistry and Equivalent Mass Figure 4: Electrolysis of NaCl(a) "brine" solution. 4. Refer to figure 4, an illustration of the electrolysis of a NaCl(aq) solution, called a brine". This method is used to manufacture chlorine gas and sodium hydroxide. Chlorine is widely used to purify water, as a disinfectant, and in the making of important compounds such as chloroform, a compound used in the production of Teflon. Chloride ions are oxidized in the anode half-cell and water is reduced...
The following equation describes the chloralkali process, an industrial process for the electrolysis of sodium chloride solutions. 2NaCl(aq) + 2H2O(1) --> 2NaOH(aq) + H2(g) + Cl2(g) How long will it take to prepare 0.503 moles of Cl2(g) by the electrolysis of concentrated sodium chloride, if 0.376 A are passed through the solution? Express your answer to the nearest number of minutes. Your Answer: Consider the following cell: Pt(s) Sn2+(aq, 0.40 M), Sn4+(aq,0.10 M) || Sn4+(aq,0.030 M), Sn2+(aq,0.010 M)|Pt(s) If the...
Electrolytic cells use electricity to cause a nonspontaneous redox reaction to occur. An electrolytic cell is constructed using the following components: . a power source, such as a battery, • the substance that will undergo electrolysis, and • two inert electrodes (usually platinum), which serve as the electrical connection between the power source and the substance undergoing electrolysis. As with any cell, oxidation occurs at the anode and reduction occurs at the cathode. The oxidation of water, which produces oxygen...
11. During the electrolysis of aqueous KCl solution using inert electrodes, gaseous hydrogen is evolved at one electrode and gaseous chlorine at the other electrode. The solution around the electrode at which hydrogen gas is evolved becomes basic as the electrolysis proceeds. Which of the following responses describe or are applicable to the #cathode and the reaction that occurs at the cathode? (1) the positive electrode (2) the negative electrode (3) 2 C Cl2 + 2 e (4) Cl2 +...
Refer to this table of reduction potentials to answer the questions. Reduction half-reaction Potential (V) +2.87 Electrolytic cells use electricity to cause a nonspontaneous redox reaction to occur. An electrolytic cell is constructed using the following components: • a power source, such as a battery, • the substance that will undergo electrolysis, and • two inert electrodes (usually platinum), which serve as the electrical connection between the power source and the substance undergoing electrolysis. As with any cell, oxidation occurs...
13. What reaction occurs at the anode during the electrolysis of molten silver chloride? A. AgCl(1) ► Ag" (l) + CE(1) B. Ag (l) +e → Ag(1) C. Ag() ► Ag () + D. 2CH(1) Cl2(g) + 2e E. Cl2(g) + 2e → 201(1) 14. One of the differences between a voltaic cell and an electrolytic cell (where electrolysis occurs) is that in an electrolytic cell: A. electrical energy is supplied from an outside energy source to drive a nonspontaneous...
Post Lecture Homework Chapter 19 Electrolysis of Aqueous Salts < 13of15 Electrolytic cells use electricity to cause a nonspontaneous redox reaction to occur. An electrolytic cell is constructed using the following components a power source, such as a battery Review | Constants Periodic Table the substance that will undergo electrolysis, and two inert electrodes (usually platinum), which serve as the electrical connection between the power source and the substance undergoing electrolysis. Refer to this table of reduction s to answer...
Please show all work step by
step and final answer.
Electrolysis in Aqueous Solutions -- Overvoltage Refer to data from a table of standard reduction potentials for common half-reactions and/or the following half-reaction to answer the questions below. 52082- + 2e → 25042- E° = 2.01 v During the electrolysis of an aqueous solution of Na2SO4, which reaction occurs at the (platinum) cathode? 2H20 + 2e - H2 + 20H SO42- + 4H+ + 2 H2O + H2SO3 2H20 0...
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