Instructions: Write the net equations, the standard cell potential, and the numb

Question

Instructions:

Write the net equations, the standard cell potential, and the number of electrons transferred in the following electrochemical cells. Instructions: . Enter all substances in the order listed at the top of the column. . Use a carot to indicate a superscript, but do nothing for subscripts. . Use a hyphen + greater than (->) for yields. . Click on the eye symbol to check your formatting. Write the net equations, the standard cell potential, and the number of electrons transferred in the following electrochemical cells. Instructions:

Explanation / Answer

always the anode is written at the left side of the doble bars (//)

Fe----> Fe+2 + 2e- anode

Sn+2 + 2 e- ----> Sn cathode

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Sn+2 + Fe-----> Sn + Fe+2

E0cell= E0cathode- E0anode= 0.14-(0.44)= -0.30V

n= 2

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Sn ----> Sn+2 + 2e- anode

(Ag+ + 1e- -----> Ag ) x 2 cathode

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2Ag+ + Sn ------> 2Ag  + Sn+2

E0cell= -0.799-(0.14)= -0.939V

n=2

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(2I- -----> I2 + e-) x3 anode

Au+3 + 3e- -----> Au cathode

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Au+3 + 6I- -----> Au + 3I2

E0cell= 1.50-0.53= 0.97V

n=3

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