Quick Q... Why is sulphuric acid added to FeSO4 Watch

croakly
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#1
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#1
When titrating it for MnO4-...
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Borek
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#2
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Write reaction equation.
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croakly
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8H+ + MnO4- +5e -----> Mn2+ +4H2O
5Fe2+ -----> 5Fe3+ +5e

5Fe2+ + MnO4- +8H+ ------> 5Fe3+ + Mn2+ +4H2O

You titrate potasstium maganate ( purple) with burette onto 25cm3 FeSO4 with 10cm3 H2SO4 in the same conical flask... I just want to know why the sulphric acid is added with the Iron II Sulhate.

The only thing I can think is that maybe the acid will remove the SO4^2- so it doesnt interfer with the reaction... but im not sure if this is right... does anyone know?
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cpchem
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The sulphuric acid is there as the source of H+.
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Dal
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its basically the acidification of the KMnO4.. it's exactly the same as adding the H2SO4 to the KMnO4
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