What does the concentration c (1/5 KMnO4) = 0.1 mol/L for potassium permanganate mean?
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In titration analysis, it is necessary to determine the concentration of potassium permanganate. The following concentrations are given in the literature for potassium permanganate standard solutions: c (1/5 KMnO4) = 0.1 mol/L; is this really just 0.1 mol/L? What does 1/5 of them mean? How is it calculated in the end? Thank you
When Mn is reduced from +7 to +2, the number of electron transfers is 5; 1/5 of this corresponds to the transfer of 1 mol of electrons, which is equivalent to a c (KMnO4) value of 0.02 mol/L