Xso3=Tso3 X (V1 - K1 X V2)X100% /m X 1000 =1.2000 X (15.20 - 1 X 4.25) X 100% / 0.503 X 1000 = 2.61%
水泥样中的三氧化硫某化验员测定一个水泥样中的三氧化硫,称取水泥试验0.503g,用去碘酸钾标准溶液15.20亳升,硫代硫
Xso3=Tso3 X (V1 - K1 X V2)X100% /m X 1000 =1.2000 X (15.20 - 1 X 4.25) X 100% / 0.503 X 1000 = 2.61%