CH-1884

Titration calculations

Chemistry · Secondary 4 · Hard · Titration calculations

A student titrates 25.0 cm³ of 0.100 mol/dm³ iron(II) sulfate solution with acidified potassium manganate(VII) solution. The equation is:

5Fe^{2+} + MnO_4^- + 8H^+ \rightarrow 5Fe^{3+} + Mn^{2+} + 4H_2O

.

If the average volume of

MnO_4^-

used is 20.0 cm³, what is the concentration of the

MnO_4^-

solution?

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