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表1 K2Cr2O7作为基准物标定Na2S2O3溶液实验数据

实验编号 m(K2Cr2O7)/g V(Na2S2O3)/mL c(Na2S2O3)/(mol·L-1) ${\bar c}$(Na2S2O3)/(mol·L-1) 1 0.1250 25.68 0.09928 0.09929 2 0.1309 27.11 0.09848 3 0.1589 32.37 0.1001