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I thought normality was similar to Van't Hoff factor, i.e. amount of particles something dissociates into. However, in this problem, Chromium is reduced from +6 to +3, so because 3 moles of electrons were required to reduce, the normality is 3[Cr(+3)] concentration. However, in the balanced equation, Cr207(-2) --> 2Cr(+3). Can someone explain to me why the normality is linked to the amount of e- required to reduce vs. the amount of particles of Chromium dissociated? I thought normality would be 2[Cr(+3)]...