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[单选题]
移取双氧水2.00L(密度为1.010g/mL)到250m的容量瓶中,并稀释至刻度,吸取25.00mL,酸化后用c(1/5KMnO4)=0.1200m01/L的KMnO4溶液29.28mL滴定至终点,则试样中H2O2的含量为()。M(H2O2)=34.02g/mol。
A.2.96%
B.29.59%
C.5.92%
D.59.17%
查看答案
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A.2.96%
B.29.59%
C.5.92%
D.59.17%
A.5.64mL
B.8.33mL
C.10.22mL
D.16.6mL
A.4m
B.40m
C.400m
D.60m