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I cannot figure out Question 2 and Question 4 I recieved 0.5/1.0Question 2 0 / 1 point Use the tabulated half-cell potentials on the handout to calculate AGº for the following balanced redoQuestion 4 0.5 / 1 point Use the tabulated half-cell potentials on the handout to calculate the equilibrium constant (K) for

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Answer #1

Cu(s) ----------------> Cu^2+(aq) + 2e^-         E0   = -0.34v

Pb^2+(aq) + 2e^- ------> Pb(s)                     E0   = -0.13v

---------------------------------------------------------------------------

Cu(s) + Pb^2+(aq) -----> Cu^2+(aq) + Pb(s)     E0cell = -0.47v

n = 2

\DeltaG0     =-nE0cell*F

              = -2*-0.47*96485

               = 90695J

                = 90.695KJ

2Al(s) -------------->2 Al^3+(aq) + 6e^-           E0 = 1.66v

3Mg^2+(aq) + 6e^- ------> 3Mg(s)               E0   = -2.38v

-------------------------------------------------------------------------

2Al(s) + 3Mg^2+(aq) -----> 2Al^3+(aq) + 3Mg(s)    E0cell = -0.72v

n = 6

\DeltaG0     =-nE0cell*F

              = -6*-0.72*96485

               = 416815.2J

\DeltaG0      = -RTlnK

416815.2 = -8.314*298lnK

lnK   = 416815.2/(-8.314*298)

lnK   =-168.24

K   = 8.6*10^-74 >>>>>answer

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