Be sure to answer all parts (a) Balance the skeleton reaction. Include the state

Question

Be sure to answer all parts (a) Balance the skeleton reaction. Include the states of matter for each substance. (b) Calculate E (c) Determine whether the reaction is spontaneous. A table of standard electrode potentials is given below for reference. Cl)+Fe (ag) C(aq)+ Fe (a (a)1C12(g)+2Fe (ag) ? 2Cl (ag) +2Fe (ag) 02590 cell O not spontaneous spontaneous Selected Standard Electrode Potentials (298 K) Half-Reaction +2.87 +1.36 +1.23 0.80 0.77 +040 0.34 0.00 -0.44 -0.76 0.83 -2.7 -3.05 Rep Na (ag) + Nas

Explanation / Answer

The two half cell reactions are

Reduction reaction

Cl2(g) + 2e- = 2Cl-(aq)

Oxidation reaction

Fe2+(aq) = Fe3+(aq) + 1e-

Multiply by 2

2Fe2+(aq) = 2Fe3+(aq) + 2e-

Overall cell reaction

Cl2(g) + 2Fe2+(aq) + 2e- = 2Fe3+(aq) + 2Cl-(aq) + 2e-

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