8. The diagram shows the apparatus used in an experiment to electrolyse concentrated aqueous sodium chloride. a. anode concentrated aqueous sodium chloride At the anode: cathode Name a suitable material that the electrodes could be made from and give a reason for your choice. b. Describe as carefully as you can what you would observe at each electrode during the electrolysis. At the cathode: C. Name the substances produced at each electrode.

8. The diagram shows the apparatus used in an experiment to electrolyse concentrated aqueous sodium chloride. a. anode concentrated aqueous sodium chloride At the anode: cathode Name a suitable material that the electrodes could be made from and give a reason for your choice. b. Describe as carefully as you can what you would observe at each electrode during the electrolysis. At the cathode: C. Name the substances produced at each electrode.

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...

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Identify a true statement about a redox reaction. It involves a transfer of protons from one species to another. It creates electrons. It involves a transfer of electrons between two species. It is always nonspontaneous
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Substances X, Y, and Z can all act as oxidizing agents. In solution, X is red, Y is green, and Z is blue. In the reactions they undergo they are reduced to X-, Y-, and Z-, all of which are colorless. When a solution of X is mixed with one containing Y- ions, the color changes from red to green. a) which species is oxidized? which is reduced? b) Is X a better oxidizing agent than Y?
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1. Label the following as either oxidation or reduction a. Zn > Zn²+ The zinc is being: b. H> H Hydrogen is being: C. BrO, > Brz Bromine is being: d. N2H4 > N2 Nitrogen is being: e. C;0.>CO; Carbon is being: 2. Write the balanced Redox reaction if the following is done in an acidic solution: Cr.0,7 +Fe? > C* + Fe* 3. Write the balanced redox reaction if the following is done in a basic solution: ClO: + I2 > Ch + 10; 4. Draw a generic electrolytic cell. Make sure to label the following: a. Anode b. Cathode C. Electrolyte A d. Electrolyte B
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6. Copy the following diagram onto your answer sheet. Using the redox reaction given below, label the diagram with the following information: Beneath each beaker write the appropriate half reaction. Label each electrode with the appropriate metal. Indicate within each beaker the aqueous ion that is present inside the water. Along the wire indicate the flow of electrons using an arrow. On the salt bridge indicate which ion will flow into the anode and which ion will flow I. I. II. IV. V. into the cathode. Redox Reaction: Mg(s) + Sn²*(aq) → Mg²*(aq) + Sn(s) Salt Bridge: KNO3 salt bridge cathode anode
a) Write a balanced chemical equation describing the oxidation of chlorine gas by the copper(III) ion to form the chlorate ion and copper(II) in an acidic aqueous solution. Use the smallest whole-number coefficients possible. b) How many electrons are transferred in the redox reaction?
The same amount of electricity (same number of moles of electrons) is used to carry out the electrolysis of PdCl2(aq) and AgN03(aq) solutions in separate cells. The masses of Pd and Ag produced were measured and compared. Which of the following is true about the mass Pd produced? A The mass of Pd produced is not related to the mass of Ag. B. The mass of Pd produced is approximately half that of Ag. C. The mass of Pd produced is approximately twice that of Ag. D. The mass of Pd produced is approximately the same as that of Ag.
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1. Fill in the blanks in the statements below based on the following reaction. IOs(s) + 5 CO(g) → 2(g) + 5 CO2(g) is oxidized, thus is the (reducing/oxidizing) agent. а. b. is reduced, thus is the (reducing/oxidizing) agent. c. A total of electrons are gained/lost in this redox reaction.