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Standard Reduction Potentials at 25 c Half-reaction E°(volts) U4+ + e- --->  U3+ -0.607 U3+ + 3e-...

Standard Reduction Potentials at 25 c
Half-reaction E°(volts)
U4+ + e- --->  U3+ -0.607
U3+ + 3e- --->U -1.798
U4+ + 4e- --->U -1.500

In a disproportionation reaction, the same species is oxidized and reduced. Use the data given above to analyze the disproportionation reaction:

4U3+ --->U + 3U4+

Will U3+ disproportionate in aqueous solution? To justify your answer, what is the standard cell voltage for the disproportionation reaction?____ V

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Answer #1

U3+ 3 e 1.748 V -3U 4 e E,-1.S0ov し3メ 4U3+ U 314+ U A G. 3 A G 2 3 F E -3-1 FE) 3FE e - E 1798- 1-500) 3. 29 8 V

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