Practice: Calculate AG for the followingreaction. Is it spontaneous?2Na + 2H2O H2 + 2OH + 2Na+AG°AG° = -nFE cellAG° = -RT In K21₂00) + 2e+ l₂(e) +2011 (aq)0.83Mn2+(aq) + 2€→→→Mn(s)-1.18Al3+(aq) +3eMg2+(aq) + 2eAl(s)1.66-Me(s)-2.37Na+(aq) + e-Na(s)-2.71E cell0.0592 VExcelllog KnADАbCopyright ©2008 Pearson Prentice Hall Inc.K

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Answered: Practice: Calculate AG for the…

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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Q10
Calculate Eo for the following reaction: Sn4- + 2K--> Sn2+ + 2K1- Sn4+ + 2e- --> Sn2+ Eo=0.15 V K1- + 1e- --> K Eo=-2.92 V
What is the value of the equilibrium constant for the cell reaction below at 25°C? 2Cr(s) + 3P62*(aq) 3Pb(s) + 2Cr3+(aq) E°cell = 0.61 V Express your answer in scientific notation rounded to TWO significant figures.
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What is the Ecell for the spontaneous reaction resulting from the combination of half-reactions (1) and (3) below? (1) HgO(s) + H2O(1) + 2e + Hg(l) + 20H (aq) (2) Zn(OH)2(s) + 2e → (3) Ag20(s) + H20(1) + 2e (4) B(OH)3(aq) + 7H*(aq) + 8e E° = 0.098 V Zn(s) + 20H"(aq) E° = -1.250 V Ag(s) + 20H (aq) E° = 0.342 V BH4 (aq) + 3H20(1) E° = -0.481 V -0.244 V 0.244 V 0.440 V -0.440 V -0.122 V
The free energy change for the following reaction at 25 °C, when [Ag+] = 1.12 M and [Co²+] M, is -221 kJ: 2Ag+ (1.12 M) + Co(s)—2Ag(s) + Co2+ (7.66x10-3 M) AG = -221 kJ What is the cell potential for the reaction as written under these conditions? Answer: V Would this reaction be spontaneous in the forward or the reverse direction? reverse = 7.66x10-3
Caculate ℰ° values for the following cells. Which reactions are spontaneous as written (under standard conditions)? Balance the equations. Standard reduction potentials are found in the Standard Reduction Potentials table. (Use the lowest possible whole number coefficients. Include states-of-matter under the given conditions in your answer.)
The standard cell potential for the following reaction is ____V. 2Al(s)+3Cd2+(aq)(1.0M)⇌2Al3+(aq)(1.0M)+3Cd(s) EoAl3+/Al = -1.662 V EoCd2+/Cd = -0.4030 V
When the Ag* concentration is 1.33 M, the observed cell potential at 298K for an electrochemical cell with the following reaction is 3.279V. What is the Mg?+ concentration? 2Ag*(aq) + Mg(s)- →2Ag(s) + Mg²*(aq) Answer: M
None
What is the calculated value of the cell potential at 298K for an electrochemical cell with the following reaction, when the F2 pressure is 8.22×10-4 atm, the F concentration is 1.46M, and the Cr³+ concentration is 1.01M? 3F₂(g) + 2Cr(s)—6F¯(aq) + 2Cr³+ (aq) Answer: V The cell reaction as written above is spontaneous for the concentrations given:

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