[解] :重铬酸钾的浓度 C = (14,.709 x 1000/294.18 )/500= 50/500 = 0,1000 mol/L
【1】重铬酸钾溶液对 对Fe的滴定度:
T(K2Cr2o7/Fe) = C x 6Fe /1000 = 0.1000X6X55.85/1000 = 0.03351 g / ml
【2】重铬酸钾溶液对 对Fe2O3的滴定度:
T(K2Cr2o7/Fe2O3) = C x 3Fe2O3 /1000 = 0.1000X3X159.7/1000 = 0.04791 g / ml