a) What is electrolysis? (b) Are electrolysis reactions thermo- dynamically spontaneous? Explain. (c) What process occurs...
a) What is electrolysis? (b) Are electrolysis reactions thermo- dynamically spontaneous? Explain. (c) What process occurs at the anode in the electrolysis of molten NaCl? (d) Why is sodium metal not obtained when an aqueous solution of NaCl undergoes electrolysis?
Homework Answers
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a) What is electrolysis? (b) Are electrolysis
reactions thermo- dynamically spontaneous? Explain. (c) What
process occurs...
3. If the amperage in your electrolysis cell were increased by a factor of 2, what...
3. If the amperage in your electrolysis cell were increased by a factor of 2, what effect would this have on the time required to produce the same amount of hydrogen? 4. Electrolysis of an NaCl solution with a current of 2.00 A for a period of 200 s produced 59.6 mL of Cl2 at 650 mm Hg pressure and 27 °C. Calculate the value of the Faraday's Constant from these data. 5. Why are different products obtained when molten...
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...
a. For the electrolysis of molten BaCl2, diagram a cell. Include the direction in which a...
a. For the electrolysis of molten BaCl2, diagram a cell. Include the direction in which a battery would be placed to power the cell. Write out half-reactions. Label flow of electrons, anode, cathode, indicate what is formed at each electrode (assume electrodes are generic metal). Could this reaction be carried out in aqueous solution? Why or why not (justify numerically). b. 0.67 g of Ag is deposited electrolytically from AgNO3after a certain period of time when subjected to a 12A...
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...
SO 2. Which of the following statements is/are true about the electrolysis of aqueous MgBrz? a)...
SO 2. Which of the following statements is/are true about the electrolysis of aqueous MgBrz? a) The pH of the solution near the cathode will increase as the electrolysis reaction proceeds. b) Mg will plate out at the cathode. obhos 23 enhora dolomoHS c) Mg2+ is getting reduced at anode. 22 nenusilon olvides d) Br is getting reduced at the cathode. e) None of the above statements is correct. 3. The half-reaction that occurs at the anode in the electrolysis...
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...
Explain why A-C are incorrect 12) An electrolysis setup can run electrochemical reactions that are not...
Explain why A-C are incorrect
12) An electrolysis setup can run electrochemical reactions that are not spontaneous because: A) It changes the ion concentrations to make the cell spontaneous. B) The electrical resistance of the system is extremely low. C) It introduces a 2nd spontaneous reaction that is reliant on the product of the 1" reaction. D) It applies an electric potential great enough to force the reaction forward.
Molten salts When electricity is applied to a molten binary salt, the cation will be reduced...
Molten salts When electricity is applied to a molten binary salt, the cation will be reduced and the anion will be oxidized. The electrolysis of CaBrz (), for example, produces Ca(s) at the cathode (from the reduction of Ca2+) and Br2(1) at the anode (from the oxidation of Br"). If more than one cation is present, only the one with highest reduction potential will be reduced. Similarly, if more than one anion is present, only the one with the highest...
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...
v For each of the following reactions, explain why they are spontaneous or non spontaneous based...
v For each of the following reactions, explain why they are spontaneous or non spontaneous based on the change in entropy of the reaction 2N20 (0) -> O2 (8) --> 2N2 (8) Decrease in the number of mole and phase change from gas to aqueous solutic A both decrease entropy N2 (g)+ 3H2(g) -> 2NH3 (8) B Decrease in the number of mole decreases entropy + CaCO3 (8) -> CaO (5) + CO2 (g) Increase in the number of mole...
3. If the amperage in your electrolysis cell were increased by a factor of 2, what effect would this have on the time required to produce the same amount of hydrogen? 4. Electrolysis of an NaCl solution with a current of 2.00 A for a period of 200 s produced 59.6 mL of Cl2 at 650 mm Hg pressure and 27 °C. Calculate the value of the Faraday's Constant from these data. 5. Why are different products obtained when molten...
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...
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...
SO 2. Which of the following statements is/are true about the electrolysis of aqueous MgBrz? a) The pH of the solution near the cathode will increase as the electrolysis reaction proceeds. b) Mg will plate out at the cathode. obhos 23 enhora dolomoHS c) Mg2+ is getting reduced at anode. 22 nenusilon olvides d) Br is getting reduced at the cathode. e) None of the above statements is correct. 3. The half-reaction that occurs at the anode in the electrolysis...
Explain why A-C are incorrect
12) An electrolysis setup can run electrochemical reactions that are not spontaneous because: A) It changes the ion concentrations to make the cell spontaneous. B) The electrical resistance of the system is extremely low. C) It introduces a 2nd spontaneous reaction that is reliant on the product of the 1" reaction. D) It applies an electric potential great enough to force the reaction forward.
Molten salts When electricity is applied to a molten binary salt, the cation will be reduced and the anion will be oxidized. The electrolysis of CaBrz (), for example, produces Ca(s) at the cathode (from the reduction of Ca2+) and Br2(1) at the anode (from the oxidation of Br"). If more than one cation is present, only the one with highest reduction potential will be reduced. Similarly, if more than one anion is present, only the one with the highest...
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...
v For each of the following reactions, explain why they are spontaneous or non spontaneous based on the change in entropy of the reaction 2N20 (0) -> O2 (8) --> 2N2 (8) Decrease in the number of mole and phase change from gas to aqueous solutic A both decrease entropy N2 (g)+ 3H2(g) -> 2NH3 (8) B Decrease in the number of mole decreases entropy + CaCO3 (8) -> CaO (5) + CO2 (g) Increase in the number of mole...
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