Using tabulated standard reduction potentials from your text, calculate the stan

Question

Using tabulated standard reduction potentials from your text, calculate the standard cell potential, E°cell (always positive for a galvanic cell), based on the following (unbalanced) reaction:

E°cell =

A galvanic cell based on the above reaction is constructed according to the generic sketch of a galvanic cell shown below:

Choose the label which best describes the following:
A B C D E F G H choose one) Direction which anions move through the salt bridge

A B C D E F G H choose one) Electrode at which reduction of iodate occurs

True or False:

False True The salt bridge completes the electrical circuit while separating the anode and cathode compartments.
False True  The solution in tube 'H' must not contain an electrolyte for the cell to operate.
False True  The salt bridge is labeled 'H'.
False True  The salt bridge is intended to prevent counter ions from flowing between the two cell compartments.
False True  Tube 'H' allows Fe2+ ions to migrate readily to the other compartment and to react directly with the iodate solution.

Explanation / Answer

True The salt bridge completes the electrical circuit while separating the anode and cathode compartments.

Salt bridge prevent mixing up of two solutions,but allow flow of ions through it

False   The solution in tube 'H' must not contain an electrolyte for the cell to operate.

Salt bridge is U-shaped invert tube. it contains agar- agar gel and NH4cl

False   The salt bridge is labeled 'H'.

False   The salt bridge is intended to prevent counter ions from flowing between the two cell compartments.

Salt bridge prevent mixing up of two solutions, but allow flow of ions through it.

False   Tube 'H' allows Fe2+ ions to migrate readily to the other compartment and to react directly with the iodate solution.

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