Final answer:
To calculate the volume of 0.0100 M MnO4- needed to react with 0.637g FeCL2, use the balanced equation and stoichiometry.
Step-by-step explanation:
The balanced chemical reaction for the reaction of Fe2+ with MnO4- in acidic solution is:
5Fe2+ + MnO4- + 8H+ → 5Fe3+ + Mn2+ + 4H2O
To calculate the volume of 0.0100 M MnO4- needed to react with 0.637g FeCl2, we need to use the balanced equation and stoichiometry. First, calculate the number of moles of FeCl2 using its molar mass. Then, use the stoichiometric ratio to determine the number of moles of MnO4- required. Finally, use the molarity of the MnO4- solution to calculate the volume needed.