A student was given a standard Fe(s) Fe 2 (aq) half cell and another half cell containing an unknown metal M in 1 00 m MNO 3 (aq) and formed the cell M(s) M (aq) Fe 2 (aq) Fe(s) At 25C, E cell 11 24 V The reaction was allowed to continue overnight and the two electrodes were weighed The iron electr...

To determine the value of EMM we need to find the standard reduction potential for the halfc ...

A student was given a standard Fe(s)|Fe 2+ (aq) half-cell and another half-cell containing an unknown metal

Question:

A student was given a standard Fe(s)|Fe²⁺(aq) half-cell and another half-cell containing an unknown metal M in 1.00 m MNO₃(aq) and formed the cell M(s)|M⁺(aq)||Fe²⁺(aq)|Fe(s). At 25°C, E_cell = 11.24 V. The reaction was allowed to continue overnight and the two electrodes were weighed. The iron electrode was found to be lighter and the unknown metal electrode was heavier. What is the value of E°(M⁺/M)?

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