1.

On the basis of the standard electrode potential values stated for acid solution, predict whether Ti^(4+) species may be used to oxidise Fe^(II)to Fe^(III) . Reaction{:(E^(@)//V),(Ti^(3+) + e^(-) to Ti^(3+), +0.01),(Fe^(3+) + e^(-) to Fe^(2+), +0.77):}

Answer»

Solution : We shall find out the EMF of the cell obtained by the combination of the two.
`E_("cell")^(@) = E_("FE^(3+)//Fe^(2+))^(@) - E_(Ti^(4++)//Ti^(3++))^(@) = +0.77 V - 0.01 V = +0.76 V`
As the emf of cell is positive therefore, `Ti^(4+)` can be USED to oxidise `Fe^(2+)` to `Fe^(3+)` ion.
`Ti^(4+) + Fe^(2+) to Ti^(3+) + Fe^(3+)`.


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