Final answer:
The question lacks information required to calculate the concentration of ferrous sulfate (FeSO4) using potassium permanganate titration, making the correct answer 'D. None of the above'.
Step-by-step explanation:
To determine the concentration of ferrous sulfate in mole/dm³ and g/dm³ using a standard potassium permanganate solution (0.005m), you need to conduct a redox titration. The reaction of potassium permanganate with ferrous sulfate is as follows:
MnO4− + 5Fe2+ + 8H+ → Mn2+ + 5Fe3+ + 4H2O
The question does not provide enough information to complete the calculation. Typically, you would measure how many cm³ of potassium permanganate solution you need to react with the 10 cm³ of ferrous sulfate solution. Then, using the stoichiometry of the reaction, calculate the moles of FeSO4 that reacted, and from there calculate the molarity and the mass concentration in grams per decimeter cubed.
Since specific details such as the volume of KMnO4 used in the titration are missing, we are unable to calculate the concentration of FeSO4. The correct answer would thus be 'D. None of the above' because the question does not contain the information needed to find the specific concentration.