pls.p helpp partb Part AGibbs energy change, A. G°, is related to cell potential, Eell, by theequationA;G° = –nFE ellCalculate the standard Gibbs energy change at 25 °C for the following reaction:Mg(s) + Fe2+(ag)→Mg²+(ag) +Fe(s)where n is the number of moles of electrons transferred andF = 96 500 C mol-1 is the Faraday's constant.Express your answer to three significant figures and include the appropriate units.A¡G° = -371 kJ.mol-1SubmitPrevious AnswersCorrectSince Eel is positive and A, G° is negative, this reaction is spontaneous under standard conditions.Part BCalculate the standard cell potential at 25 °C for the reactionX(s) + 2Y* (ag)→X²+(ag) +2Y(s)where A, H° = -825 kJ mol-1and Ar S° = -147 J K-1 mol-1.Express your answer to three significant figures and include the appropriate units.HA?E celValueUnitsSubmitRequest Answer

on A‚G° = -nFEel Calculate the standard Gibbs energy change at 25 °C for the following reaction: Mg(s) + Fe²+(aq)→Mg²+(aq) +Fe(s) n is the number of moles of electrons transferred and 96 500 C mol¬1 is the Faraday's constant. Express your answer to three significant figures and include the appropriate units. A;G® = -371 kJ•mol-! Submit Previous Answers v Correct Since E is positive and A,G° is negative, this reaction is spontaneous under standard conditions. Part B Calculate the standard cell potential at 25 °C for the reaction X(s) +2Y*(aq)→X²*(aq) + 2Y(s) where A, H° = -825 kJ mol-1 and A, S° = -147 JK-' mol¯! Express your answer to three significant figures and include the appropriate units. Eell = Value Units Submit Request Answer

on A‚G° = -nFEel Calculate the standard Gibbs energy change at 25 °C for the following reaction: Mg(s) + Fe²+(aq)→Mg²+(aq) +Fe(s) n is the number of moles of electrons transferred and 96 500 C mol¬1 is the Faraday's constant. Express your answer to three significant figures and include the appropriate units. A;G® = -371 kJ•mol-! Submit Previous Answers v Correct Since E is positive and A,G° is negative, this reaction is spontaneous under standard conditions. Part B Calculate the standard cell potential at 25 °C for the reaction X(s) +2Y(aq)→X²(aq) + 2Y(s) where A, H° = -825 kJ mol-1 and A, S° = -147 JK-' mol¯! Express your answer to three significant figures and include the appropriate units. Eell = Value Units Submit Request Answer

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

Chapter18: Electrochemistry

Section: Chapter Questions

Problem 3RQ: Table 17-1 lists common half-reactions along with the standard reduction potential associated with...

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Table 17-1 lists common half-reactions along with the standard reduction potential associated with each half-reaction. These standard reduction potentials are all relative to some standard. What is the standard (zero point)? lf is positive for a half-reaction, what does it mean? If is negative for a half-reaction, what does it mean? Which species in Table 17-1 is most easily reduced? Least easily reduced? The reverse of the half-reactions in Table 17-1 are the oxidation half-reactions. How are standard oxidation potentials determined? In Table 17-1, which species is the best reducing agent? The worst reducing agent? To determine the standard cell potential for a redox reaction, the standard reduction potential is added to the standard oxidation potential. What must be true about this sum if the cell is to be spontaneous (produce a galvanic cell)? Standard reduction and oxidation potentials are intensive. What does this mean? Summarize how line notation is used to describe galvanic cells.
Given the following data: PtCl42(aq)+2ePt(s)+4Cl(aq)Ered=0.73VPt2+(aq)+2ePt(s)Ered=1.20V Find Kffor PtCl42- at 25°C.
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