e. AF(aq) and Na (aq) 7. Given the following two half-reactions, write the overall balanced reaction in the direction in which it is spontaneous and calculate the standard cell potential. Cr*(aq) +3 e → Cr(s) Sn2*(aq) +2 e- → Sn(s) E° =-0.41 V E° =-0.14 V En =+0.55 V a. 2 Cr*(aq) +3 Sn(s) →2 Cr(s) +3 Sn2"(aq) b. 3 Cr3*(aq) +2 Sn(s) → 3 Cr(s)+2 Sn²*(aq) c. 2 Cr(s)+3 Sn²*(aq)→ 2 Cr**(aq)+3 Sn(s) d. 3 Cr(s)+2 Sn²*(aq) → 3 Cr*(aq) +2 Sn(s) e. 2 Cr(s)+ 3 Sn²“(aq)→2 Cr**(aq)+3 Sn(s) cell En =-1.35 V %3D cell En =+0.27 V En =-0.55 V Esn =+0.40 V cell cell cell

e. AF(aq) and Na (aq) 7. Given the following two half-reactions, write the overall balanced reaction in the direction in which it is spontaneous and calculate the standard cell potential. Cr(aq) +3 e → Cr(s) Sn2(aq) +2 e- → Sn(s) E° =-0.41 V E° =-0.14 V En =+0.55 V a. 2 Cr(aq) +3 Sn(s) →2 Cr(s) +3 Sn2"(aq) b. 3 Cr3(aq) +2 Sn(s) → 3 Cr(s)+2 Sn²(aq) c. 2 Cr(s)+3 Sn²(aq)→ 2 Cr**(aq)+3 Sn(s) d. 3 Cr(s)+2 Sn²(aq) → 3 Cr(aq) +2 Sn(s) e. 2 Cr(s)+ 3 Sn²“(aq)→2 Cr**(aq)+3 Sn(s) cell En =-1.35 V %3D cell En =+0.27 V En =-0.55 V Esn =+0.40 V cell cell cell

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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