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Consider a galvanic electrochemical cell constructed using Cr/Cr3* and Zn/Zn2+ at 25 °C. The following half-reactions...
Consider a galvanic electrochemical cell constructed using Cr/Cr³⁺ and Zn/Zn²⁺ at 25 °C. The following half-reactions are provided for each metal: Cr³⁺(aq) + 3 e⁻ → Cr(s) E°red = -0.744 V Zn²⁺(aq) + 2 e⁻ → Zn(s) E°red = -0.763 V which half reaction takes place at the anode which is the standar cell potential write the balance equation for the overall reaction in acidic sol What is the cell potential for this cell at 25 °C when [Zn²⁺] =...
Consider the galvanic cell based on the following half-reactions: Zn2+ + 2e + Zn * = -0.76 V Cd²+ + 2e - → Cd &* = -0.40 V a. Determine the overall cell reaction and calculate call (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.) V cell b. Calculate AG and K for the cell reaction at 25°C. AGE kJ K =...
need answers for all questions Question 35 (3 points) (35) For galvanic cell: (-) Cr/ Cr3+ (aq) // Cu2+ (aq) / Cu (+), the correct half reactions are 0 (a) Cr3+ (a) Cr3+ + 3e → Crat (-) electrode; Cu+ 2e → Cu2+ at (+) electrode (b) Cr - 3e → Cr3+ at (-) electrode; Cu2+ + 2e → 2 Cu at (+) electrode Occ) cr (c) Cr + 3e → Cr3+ at (-) electrode; Cu2+ - 2e → Cu...
A galvanic cell consists of a Zn2+/Zn half-cell and a standard hydrogen electrode. If the Zn2+/Zn half-cell standard cell functions as the anode, and the standard cell potential is 0.76 V, what is the standard reduction potential for the Zn2+/Zn half-cell?
Given the following half-cell potentials, i. Zn2+ + 2 e– → Zn (E° = –0.76 V) ii. Cr3+ + 3 e– → Cr (E° = –0.74 V) determine the cell potential whose overall redox reaction under standard conditions is 3 Zn(s) + 2 Cr3+(aq) → 3 Zn2+(aq) + 2 Cr(s): * A. –0.80 V B. –0.02 V C. +0.02 V D. +0.80 V
Please help me solve this An electrochemical reaction occurring in a galvanic cell is expressed using the standard cell notation: Zn(s) Zn2+ (aq) || Ag (aq) | Ag(s) The standard reduction potentials for the half-cell reactions are as follows: Zn2+(aq) + 2e_? Zn(s) E o=-0.76 V Ag (a)eAg(s) E +0.80 V Which of the following statements is correct regarding this electrochemical cell? A. Agt is reduced at the cathode; Zn is oxidized at the anode. B. Edell = +1.56 V...
A galvanic cell was constructed with a Zn/Zn2+ half cell and an H2/H+ half cell(standard hydrogen electrode, SHE). Calculate Ecell under the following conditions: [Zn2+] = 0.01 M, [H+] = 2.5 M, and PH2 = 0.30 atm at 25°C?
Name: Chem 1120 Electrochemical Potentials Perform each of the following calculations, showing all work. Use the Electrochemical Potentials table provided on D2L if values are not provided. Standard State Electrochemical Cells 1. In each of the following systems two half-reactions are provided. For each system, a) write the balanced reaction occurring for a spontaneous system, and b) calculate the overall standard cell potential. a. Half Reaction Zn2+(aq) + 2e = Zn(s) Cr3+ (aq) + 38 = Cr(s) Eºred (V) -0.76...
help with this one Construct a galvanic cell using the following half-reactions: Cr3+ (aq) + 3e - Cr(s) º = -0.56 V 2 Hg2+(aq) + 2e - H922+(aq) = 0.92 V 2 Ho2+ The initial concentrations are: [Cr3+] =0.31 M [Hg2+] =2.57 M [Hg22+] =0.49 M (1) What is the potential of this non-standard cell at 298 K? Give your answer to 3 sig. figs. E(V) = Submit Answer Tries 0/2 (ii) How will each of the following changes to...
A standard galvanic cell is constructed with Fe3+ | Fe2+and Cr3+ | Cr 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.) Cr3+ is reduced at the cathode. As the cell runs, anions will migrate from the Cr3+|Cr compartment to the Fe3+|Fe2+compartment. Fe3+ is reduced at the cathode. The anode compartment is the Cr3+|Cr compartment. In the external circuit, electrons flow...