A aluminum –copper voltaic cell is represented as follows:Al(s) I Al3+(1.0 M) || Cu2+(1.0 M) I Cu(S)Which of the following statements is false?O a. The mass of the aluminum electrode decreases during dischargeO b.The concentration of Cu²+ decreases during dischargeOC. Reduction occurs at the copper electrode during dischargeO d. The copper electrode is the anodeO e. Electrons flow through the external circuit from the aluminum electrode to thecopperelectrode

The cell given is, => Al (s) | Al3+ (1.0 M) || Cu2+ (1.0 M) | Cu (s)

A aluminum -copper voltaic cell is represented as follows: Al(S) IA*(1.0 M) II Cu2*(1.0 M) I Cu(s) Which of the following statements is false? O a. The mass of the aluminum electrode decreases during discharge Ob. The concentration of Cu+ decreases during discharge OC Reduction occurs at the copper electrode during discharge O d. The copper electrode is the anode O e. Electrons flow through the external circuit from the aluminum electrode to the copper electrode

A aluminum -copper voltaic cell is represented as follows: Al(S) IA(1.0 M) II Cu2(1.0 M) I Cu(s) Which of the following statements is false? O a. The mass of the aluminum electrode decreases during discharge Ob. The concentration of Cu+ decreases during discharge OC Reduction occurs at the copper electrode during discharge O d. The copper electrode is the anode O e. Electrons flow through the external circuit from the aluminum electrode to the copper 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...

See similar textbooks

Similar questions

For the following redox reaction:MnO2(s) + NO (g) → Mn2+ (aq) + NO3-(aq) a. Write the cell notation b. Is the reaction spontaneous?c. Voltaic or Electrolytic cell? d.Calculate Ecell at room temperature when MnO2 is 5.0 g, NO is 1.5 atm, [Mn2+] =1.25 M, [H+] = 0.95 M and NaNO3 is 3.7 g in a 1 L solution.
Which of the following statements is true concerning the voltaic cell shown below? Voltmeter Kt NO,- Cu+ Zn* NO, So, Zn Cu So, NO, NO, Zn Cut II O a. Zn is the anode having a mass that increases with time. O b. Zn is the cathode having a mass that decreases with time Oc The mass of the Zn electrode neither increases nor decreases with time. O d. Zn is the anode having a mass that decreases with time. O e. Zn is the cathode having a mass that increases with time.
48. The following diagram shows an electrochemical cell. Fill in a and with the correct labels for the anode and the cathode. Fill in the blank spaces labeled c and with the correct chemical species. Fill in the blank space labeled e with an arrow showing the correct direction of electron flow Salt bridge containing KCl * (aq) Sn Ag b. Sn(NO 3 ) 2 (aq) AgNO 3 (aq) Oxidation Sn c\ +2 Reduction Ag^ + +d \ Ag(s)
5
Sketch a voltaic cell for each redox reaction. Label the anode and cathode and indicate the half-reaction that occurs at each elec- trode and the species present in each solution. Also indicate the direction of electron flow. a. Ni"(aq) + Mg(s) - Ni(s) + Mg+(aq) b. 2 H*(aq) + Fe(s) - H2(g) + Fe*(aq) c. 2 NO, (aq) + 8 H'(aq) + 3 Cu(s) 2 NO(g) + 4 H,O() + 3 Cu**(aq)
The diagram below is an electrochemical cell based on a redox reaction that needs to be completed by a student in the laboratory. Zn(s) + Br₂(1)→ Zn²+ (aq) + 2 Br¯(aq) C electron flow? B A H G Salt Bridge Zn E F D Which of the following is true for the cell? O a. The cathode is A, the anode is B and the electrons travel from left to right O b. The cathode is A, the anode is B, however there is no current Oc. The cathode is A, the anode is B and the electrons travel from left to right O d. The anode is A, the cathode is B and the electrons travel from left to right O e. The anode is A, the cathode is B and the electrons travel from right to left
28
Consider electrolysis of the mixture of two molten ionic compounds. What substance is formed at the cathode? O Pb (s) O Br2 (1) OK (s) O Cl2 (g) DC Power Supply + Molten salts KCI and PbBr₂
Number 2
An electrolytic cell was used to cover a copper cathode with a thin layer of Silver, AgNO3 is the electrolyte. What is the half reacton in the anode? Ag+ + e- ----> Ag Ag+ + 2e- -----> Ag2 Ag- ----> Ag + e-
2.Write a balanced cell reaction. Include the phases of all species in the chemical equation.
22. The diagram below represents a voltaic cell. What is the balanced electrochemical reaction represented by this cell? Al(s))Al³*(1.0 M)||Cu²*(1.0 M)|Cu(s) a. Al(s) + Cu (ag)→ Al** (aq) + Cu(s) b. 2H,0) + 3A1*(aq) + 2Cu(s) → 2A1(s) + 3Cu?*(aq) + 4H*(aq) + 0,(g) c. 2Al(s) + 3Cu?*(aq) → 3AI** (aq) + 2Cu(s) d. Al*(aq) + Cu(s) → Al(s) + Cu?*(aq) e. 3A* (aq) + 2Cu(s) → 2Al(s) + 3Cu²*(aq)