Final answer:
To calculate the theoretical titer required at different temperatures for the titration of Iron(II) sulfate against potassium permanganate, you need to consider the balanced chemical equation and stoichiometric ratio, as well as the known concentration of the permanganate solution.
Step-by-step explanation:
To calculate the theoretical titer required at different temperatures for the titration of Iron(II) sulfate against potassium permanganate, you need to consider the balanced chemical equation for the reaction between Fe²+ and MnO4^- ions.
Based on the equation, you can determine the stoichiometric ratio between Fe²+ and MnO4^- and use it to calculate the molar ratio. Then, using the known concentration of the permanganate solution, you can calculate the molar concentration of Fe²+ in the titrand.
Finally, multiplying the molar concentration by the volume of Fe²+ solution used in the titration will give you the theoretical titer required.