16. In which direction do electrons flow in an electrochemical cell? a From the cathode to the anode through the salt bridge b. From the cathode to the anode through the external circuit. c. From the anode to the cathode through the salt bridge. d. From the anode to the cathode through the external circuit. 17. A galvanic cell is made up of two half-cells connected by an external conductor and a porous salt bridge. Which of the following best explains the function of the salt bridge in a galvanic cell? a. It permits the migration of salt bridge ions into the electrolyte solutions, thus maintaining neutrality. b. It prevents migration of electrolytes from both the anode and cathode electrodes, thus maintaining neutrality. C. It permits the flow of electrons by allowing the two separate electrochemical cells connect; thus, neutrality is maintained. d. It prevents the mixing of electrolytes from both the anode and cathode electrodes: thus, neutrality is maintained.

16. In which direction do electrons flow in an electrochemical cell? a From the cathode to the anode through the salt bridge b. From the cathode to the anode through the external circuit. c. From the anode to the cathode through the salt bridge. d. From the anode to the cathode through the external circuit. 17. A galvanic cell is made up of two half-cells connected by an external conductor and a porous salt bridge. Which of the following best explains the function of the salt bridge in a galvanic cell? a. It permits the migration of salt bridge ions into the electrolyte solutions, thus maintaining neutrality. b. It prevents migration of electrolytes from both the anode and cathode electrodes, thus maintaining neutrality. C. It permits the flow of electrons by allowing the two separate electrochemical cells connect; thus, neutrality is maintained. d. It prevents the mixing of electrolytes from both the anode and cathode electrodes: thus, neutrality is maintained.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

What type of a battery is lead storage battery? Write the anode and cathode reactions and the overall cell reaction occurring in the operation of a lead storage battery.
Which statement is true a. Galvanic cells involve non-spontaneous redox reactions b. The oxidizing agents give off electrons C. In chemical cells the electrons flow from cathode to anode d. Electrolytic cells need an external source of electricity to proceed
22. What is electrochemistry? 23. Mention the types of electrochemical cells and tell the difference. 24. Draw an electrolytic cell and label its parts 25. Say what applications electrochemistry can have in medicine.
5. Explain what is meant by a fuel cell. Provide a balanced equation to represent the reaction in any fuel cell of your choice.
8. The electrolysis of copper (II) sulfate using carbon electrodes is demonstrated to a chemistry class. In the demonstration, a 1.50 A current passes through 75.0 mL of 0.125 mol/1. copper (II) sulfate solution. How long, in minutes, would it take to plate all of the copper from the solution?
Explain the working of the oxygen probe by referring to reactions that take place at the cathodeand anode
13. Compare and contrast an electrolytic cell with a voltaic cell. Provide one example where both are present in daily life. Electrolytic Cell Differences Similarities Voltaic Cell Differences h
Consider an electrochemical cell constructed from the following half cells, linked by a KCl salt bridge. - a Fe electrode in 1.0 M FeCl solution - a Ni electrode in 1.0 M Ni(NO) solution When the cell is running spontaneously, which of the choices are true? a.) The nickel electrode gains mass and the nickel electrode is the cathode. b.) The nickel electrode loses mass and the nickel electrode is the cathode. c.) The iron electrode gains mass and the iron electrode is the anode. d.)The iron electrode loses mass and the iron electrode is the cathode.
Draw a diagram of an electrochemical cell. Use iron and silver for the electrodes. Include and label electrodes, electrolyte, cathode, anode, and the direction of electron flow.
‏choose the best answer
Which cell is generally used in hearing aids?Name the material of the anode,cathode and the electrolyte. Write the reactions involved.
Please explain step by step. ** Electrolysis 4. Sketch a cell for the electrolysis of aqueous HCl using copper elec trodes. Label the anode and cathode and give the electrode reactions. Indicate the directions in which the electrons and ions move and the connections to the terminal of the voltage source.