Calculate the equilibrium constant, K, for the followingE reaction at 25°C.2 Cr(s) + 3 Co² +(aq)2 Cr³ +(aq) + 3 Co(s)The balanced reduction half-reactions for the equation andtheir respective standard reduction potential areK=Cr³ +(aq) + 3eCr(s)E= -0.74 VcellCo² +(aq) + 2e → Co(s)E= -0.277 Vcell

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Answered: Calculate the equilibrium constant, K,…

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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Given: Cr3+(aq)+3e Cr(s) Pb2+(aq) + 2e+ Pb(s) EO = -0.74 V %3D E° = -0.13 V What is the standard cell potential for the following reaction? 2 Cr(s)+3P62+(aq) → 3Pb(s)+2 Cr3+(aq) -0.87 V 0.87 V O 0.61 V O 1.83 V - 0.61 V O Ei Type here to search' Chp
The two half cells that make up a battery are shown below with their reduction potentials: Br2(aq) + 2e → 2B1¯(aq); E= 1.07 V Cu²+(aq) + e – Cu*(aq); E= 0.16 V What is the equation for the galvanic cell made with these two half equations? Oa. 2Cu*(aq) + Br2(aq) – 2Cu2+(aq) + 2Br (aq) Ob. 2Cu2*(aq) + Br2(aq) → 2Cu*(aq) + 2Br"(aq) Oc. 2Cu*(aq) + 2Br (aq) – 2Cu²* (aq) + Br2(aq) Od. 2Cu2*(aq) + 2B1°(aq) → 2Cu*(aq) + Br2(aq) Oe. None of the other options
A galvanic cell consists of a Ni/Ni²+ half-cell and a Co/Co²+ half-cell with initial concentrations: [Ni²+] = 0.80M and [Co²+] = 0.20 M at 298.15 K. half-reaction Eº (V) Ni²+ (aq) +2e→Ni(s) -0.25 Co²+ (aq) +2e→Co(s) -0.28 Write the balanced overall reaction that powers the cell. Calculate Ecell for the redox reaction. (round to 2 decimal places) What is [Ni²+] when Ecell when reaches 0.03V? (round to 2 sig figs) V What happens at equilibrium? What is Ecell at equilibrium? [Ni²+] at equilibrium: [Co2+] at equilibrium: (round to 2 decimal places) (round to 2 sig figs) (round to 2 sig figs) V M M M
A galvanic cell is powered by the following redox reaction: 2+ + 3 Cu²+ (aq) + Cr(OH)3(s) + 5OH¯(aq) → 3 Cut (aq) + Cro (aq) + 4H₂O(1) Answer the following questions about this cell. If you need any electrochemical data, be sure you get it from the ALEKS Data tab. Write a balanced equation for the half-reaction that takes place at the cathode. Write a balanced equation for the half-reaction that takes place at the anode. Calculate the cell voltage under standard conditions. Round your answer to 2 decimal places. 0 0 0 E = v V ロ→ロ X 5
Consider the following reaction and its AG" at 25.00 °C. Mg(s) + Ni" (aq) – Mg²* (aq) + Ni(s) AG = -408.0 kJ/mol Calculate the standard cell potential, E for the reaction. E = V cell Calculate the equilibrium constant, K, for the reaction. K =
A galvanic cell consists of a Ni/Ni²+ half-cell and a Co/Co²+ half-cell with initial concentrations: [Ni²+] = 0.80M and [Co²+] = 0.20 M at 298.15 K. half-reaction Eº (V) Ni²+ (aq) +2e→Ni(s) -0.25 Co²+ (aq) +2e→Co(s) -0.28
2+ Calculate the cell potential for the reaction as written at 25.00 °C, given that [Mg² ]=0.761 Mand [Ni²+]=0.0180 M. Use the standard reduction potentials from the 2+ appendix in the book. 2+ ↔ Mg²+ (aq) + Ni(s) Give the numeric value only assuming a measurement in V Mg(s) + Ni²+ (aq) → 2+ (aq)
Calculate the cell potential for the galvanic cell in which the reaction Ti(s) + Cu²+ (aq) = Ti²+ (aq) + Cu(s) 2+ 2+ occurs at 25 °C, given that [Ti 1= 0.00130 M and [Cu]=0.892 M. Refer to the table of standard reduction potentials. E=
Calculate the cell potential for the galvanic cell in which the given reaction occurs at 25 °C, given that [Nit] = 0.00170 M and [Au] = 0.868 M. Standard reduction potentials can be found in this table. %3D 3 Ni(s) + 2 Au*(aq) 3 Ni?+(aq) + 2 Au(s) E = V
A galvanic cell at a temperature of 25.0 °C is powered by the following redox reaction: 3+ 2+ 2 Cr³+ (aq) + 3Ca (s) → 2Cr (s) + 3 Ca²+ (aq) 3+ 2+ Suppose the cell is prepared with 2.68 M Cr in one half-cell and 7.85 M Ca in the other. Calculate the cell voltage under these conditions. Round your answer to 3 significant digits. x10 ロ・ロ × μ 0|0 Ś
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