Homework Answers
1)Cell potential of the given reaction
Ecell=Ecathode-Eanode
=ERight-ELeft
=0.80v-(-0.25v)
=0.80v+0.25v
=1.05v
2) Net ionic equation for overall balanced redox reaction
2Ag⁺(aq) + Ni(s) → 2Ag(s) + Ni²⁺(aq)
3) Pls
see uploaded figure with answer
4) Representation of Galvanic cell
Ni(s)| Ni[2+] (aq) || Ag+ (aq)| Ag(s)
5) A salt bridge, in electrochemistry, is a laboratory device used to connect the oxidation and reduction half-cells of a galvanic cell (voltaic cell). It is a type of electrochemical cell. It maintains electrical neutrality within the internal circuit, preventing the cell from rapidly running its reaction to equilibrium. Eg: AgNO3, KCl
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Given the following information: Ni2+ + 2e- Ni(s) Eº = -0.25 V Ag* + e. Ag(s)...
Enter electrons as e A voltaic cell is constructed in which the anode is a Ni...
Enter electrons as e A voltaic cell is constructed in which the anode is a Ni Ni2+ half cell and the cathode is a Hg|Hg2+ half cell. The half-cell compartments are connected by a salt bridge. (Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (aq) or (s). If a box is not needed, leave it blank.) The anode reaction is: + + The cathode reaction is: + V> + The net cell reaction is:...
Anode E A Cathode B 7 С D Ni2+ + 2e -0.40 V Cd2+ + 2e...
Anode E A Cathode B 7 С D Ni2+ + 2e -0.40 V Cd2+ + 2e -0.26 V Ni (s) Cd (s) Reduction Ni (8) Ereduction Cd (8) Ereduction Ni2+ (aq) Cd2+ (aq) Oxidation Salt Bridge Look at the voltaic cell diagram above and finish the following sentences using options given on the table above: i) Ais ii) B is metal on the left metal on the right solution on the left iii) Cis iv) Dis solution on the right...
1) A standard galvanic cell is constructed with Ni2+ | Ni and I2 | I- half...
1) A standard galvanic cell is constructed with Ni2+ | Ni and I2 | I- half cell compartments connected by a salt bridge. Which of the following statements are correct? Hint: Refer to a table of standard reduction potentials. (Choose all that apply.) A. Ni is oxidized at the anode. B. In the external circuit, electrons flow from the Ni2+|Ni compartment to the I2|I-compartment. C. As the cell runs, anions will migrate from the Ni2+|Ni compartment to the I2|I-compartment. D....
Half-cell Potentials: Half Reaction: E value +0.80 V Agt + e → Ag Fe3+ + €...
Half-cell Potentials: Half Reaction: E value +0.80 V Agt + e → Ag Fe3+ + € → Fe2+ +0.77 v +0.34 V -0.13 V Cu2+ +2e → Cu Pb2+ + 2e - → Ib Ni2+ + 2e → Ni Cd2+ +2e → Cd -0.25 V -0.40 V Fe2+ + 2e → Fe -0.44 V Zn2+ + 2e → Zn -0.76 V Al3+ +3e → AI - 1.66 V Consider an electrochemical cell constructed from the following half cells, linked by...
Consider the following electrochemical cell at room temperature. 1.05 V N м Salt Bridge Ni2+an (110...
Consider the following electrochemical cell at room temperature. 1.05 V N м Salt Bridge Ni2+an (110 The half cell and the reuction potential for the anode is: Half-Reaction E (V) Ni2+ (aq) + 2e ® Ni(s) -0.25 Using this information from the diagram, determine the standard reduction potential of metal M. +0.25 V O-1.40V +0.80 v -0.80 V +1.40 V
Part A Describe a galvanic cell that uses the reaction: 2Ag+ (aq) + Ni(s) + 2Ag(s)...
Part A Describe a galvanic cell that uses the reaction: 2Ag+ (aq) + Ni(s) + 2Ag(s) + Ni2+ (aq) Match the items in the left column to the appropriate blanks in the sentences on the right Reset Help Nja: Ag There is an anode in an aqueous solution of and an cathode in an aqueous solution of A connects the anode and cathode compartment. The electrodes are connected through an external circuit Ag semiconductor Ni salt bridge dielectric Write the...
Enter electrons as e A voltaic cell is constructed in which the anode is a Mn...
Enter electrons as e A voltaic cell is constructed in which the anode is a Mn Mn+ half cell and the cathode is a Ag Agt half cell. The half-cell compartments are connected by a salt bridge. (Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (aq) or (s). If a box is not needed, leave it blank.) The anode reaction is: The cathode reaction is: The net cell reaction is: In the external circuit,...
6. Consider the following galvanic cell and standard reduction potentials: Ag Pb E° = 0.80 V salt bridge Ag+ (aq) + e →...
6. Consider the following galvanic cell and standard reduction potentials: Ag Pb E° = 0.80 V salt bridge Ag+ (aq) + e → Ag(s) Pb2+(aq) + 2e → Pb(s) E° = -0.13 V 1 M Ag+ 1 M Pb2+ Which one of the following statements is TRUE? a) The cell on the left containing Ag+(aq) is the anode. b) The initial reading on the voltmeter would be 0.67 V. c) Oxidation occurs in the cell on the right containing Pb²+(aq)....
A galvanic cell using Ni2+(aq) / Ni(s) half-cell and Hg22+(aq) / Hg(l) half-cell is prepared. The...
A galvanic cell using Ni2+(aq) / Ni(s) half-cell and Hg22+(aq) / Hg(l) half-cell is prepared. The E°nickel = -0.25 V and E°mercury = 0.789 V. (blank 1) Write the balanced reaction that occurs at the anode. (blank 2) Write the balanced reaction that occurs at the cathode. (blank 3) Calculate the standard cell potential of this galvanic cell. (blank 4) Write the shorthand cell notation for the galvanic cell. Question 10 options: Blank # 1 Blank # 2 Blank #...
Enter electrons as e A voltaic cell is constructed in which the anode is a Mg...
Enter electrons as e A voltaic cell is constructed in which the anode is a Mg Mg2+ half cell and the cathode is a Ni Ni2+ half cell. The half- cell compartments are connected by a salt bridge. (Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (ag) or (s). If a box is not needed, leave it blank.) The anode reaction is: The cathode reaction is: The net cell reaction is: In the external...
Enter electrons as e A voltaic cell is constructed in which the anode is a Ni Ni2+ half cell and the cathode is a Hg|Hg2+ half cell. The half-cell compartments are connected by a salt bridge. (Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (aq) or (s). If a box is not needed, leave it blank.) The anode reaction is: + + The cathode reaction is: + V> + The net cell reaction is:...
Anode E A Cathode B 7 С D Ni2+ + 2e -0.40 V Cd2+ + 2e -0.26 V Ni (s) Cd (s) Reduction Ni (8) Ereduction Cd (8) Ereduction Ni2+ (aq) Cd2+ (aq) Oxidation Salt Bridge Look at the voltaic cell diagram above and finish the following sentences using options given on the table above: i) Ais ii) B is metal on the left metal on the right solution on the left iii) Cis iv) Dis solution on the right...
Half-cell Potentials: Half Reaction: E value +0.80 V Agt + e → Ag Fe3+ + € → Fe2+ +0.77 v +0.34 V -0.13 V Cu2+ +2e → Cu Pb2+ + 2e - → Ib Ni2+ + 2e → Ni Cd2+ +2e → Cd -0.25 V -0.40 V Fe2+ + 2e → Fe -0.44 V Zn2+ + 2e → Zn -0.76 V Al3+ +3e → AI - 1.66 V Consider an electrochemical cell constructed from the following half cells, linked by...
Consider the following electrochemical cell at room temperature. 1.05 V N м Salt Bridge Ni2+an (110 The half cell and the reuction potential for the anode is: Half-Reaction E (V) Ni2+ (aq) + 2e ® Ni(s) -0.25 Using this information from the diagram, determine the standard reduction potential of metal M. +0.25 V O-1.40V +0.80 v -0.80 V +1.40 V
Part A Describe a galvanic cell that uses the reaction: 2Ag+ (aq) + Ni(s) + 2Ag(s) + Ni2+ (aq) Match the items in the left column to the appropriate blanks in the sentences on the right Reset Help Nja: Ag There is an anode in an aqueous solution of and an cathode in an aqueous solution of A connects the anode and cathode compartment. The electrodes are connected through an external circuit Ag semiconductor Ni salt bridge dielectric Write the...
Enter electrons as e A voltaic cell is constructed in which the anode is a Mn Mn+ half cell and the cathode is a Ag Agt half cell. The half-cell compartments are connected by a salt bridge. (Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (aq) or (s). If a box is not needed, leave it blank.) The anode reaction is: The cathode reaction is: The net cell reaction is: In the external circuit,...
6. Consider the following galvanic cell and standard reduction potentials: Ag Pb E° = 0.80 V salt bridge Ag+ (aq) + e → Ag(s) Pb2+(aq) + 2e → Pb(s) E° = -0.13 V 1 M Ag+ 1 M Pb2+ Which one of the following statements is TRUE? a) The cell on the left containing Ag+(aq) is the anode. b) The initial reading on the voltmeter would be 0.67 V. c) Oxidation occurs in the cell on the right containing Pb²+(aq)....
Enter electrons as e A voltaic cell is constructed in which the anode is a Mg Mg2+ half cell and the cathode is a Ni Ni2+ half cell. The half- cell compartments are connected by a salt bridge. (Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (ag) or (s). If a box is not needed, leave it blank.) The anode reaction is: The cathode reaction is: The net cell reaction is: In the external...
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