CuSO4+NaOH=2Na+SO4+Cu(OH)2↓必然沉淀额,斐林试剂我查了资料如下将36.4g CuSO4.5H2O溶于200mL水中,用0.5mL浓硫酸酸化,再用水稀释到500mL待用；取173g酒石酸钾钠KNaC4H4O6.4H2O,71g NaOH固体溶于400mL水中,再稀释到5...