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sapling learning com CC It Turned pink At 27 ML Warning! Due to inactivity California State Univer X saplingleaming.com saplinglearning com O ming-Com view.php?id 35068000 For the following electrochemical cell Cu(s) Cu (aq, 0.0155 M)llAg (aq, 3.50 M)Ag(s) write the net cell equation. Phases are optional. Do not include the concentrations. Calculate the following values at 25.0 °C using standard potentials as needed. Number Number kJ mol Number Number kJ mol 2011-2017 Sapling Learning, Inc. about us Careers l privacy policy terms of use contact us help I'm Cortana. Ask me anything Descripti Policies: You can c You can up on an k You can you get i You lose in your q answer o eTextb O Help W O Web He Techni 22 PM E 6/2/2017Explanation / Answer
The reactions are Cu-------.Cu+2 +2e- , Eo= 0.34 (1)
Ag++e--------->Ag, Eo= 0.80 (2)
Multiplying Eq.2 with 2 and addition with Eq.1
Cu + 2Ag+ ------>Cu+2 + 2Ag, EO= 0.34+0.80=1.14V
deltaGo=-nFEo, n= no of electrons transferred= 2, F= 1.14V, F= 96500
deltaG=-2*1.14*96500 joules/mole=-220020 joules/mole = -220.02 Kj/mole
Since E= Eo-(0.0593/n)*logQ, Q= [Cu+2]/[Ag+]2= 0.0155/(3.5)2= 0.001265
E= 1.14-(0.0593/2)*log(0.001265)=1.225 V, deltaG=-2*96500*1.225=-236425 J/mole=-236.425 Kj/mole
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