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Use the cell representation below to answer the questions that follow.
Cr(s)ǀ`Cr^(3+)(aq)ǁFe^(2+)(aq)` ǀFe(s)
(a) Write the equation for the cell reaction.
(b) If the e.m.f of the cell is 0.30 volts and the `E^θ` value for `Fe^(2+)(aq)`ǀFe(s) is
-0.44 volts, calculate the `E^θ` value for`Cr^(3+)(aq)ǀCr(s)`