希望大家特别帮我解决一下当量的问题 I have some questions which of the following simple of reducing agents in chemically equivalent to 25 milliters of 0.2 normal kMnO4 to Mn2+ and H2O? A.100 ML OF 0.10 M H2C2O4 to be oxidized to CO2 B.50ml of 0.10M H3AsO3to be As(V) C.25 ml of 0.20M H2O2 to O2 D.25ml o f0.10M Sn2+ to Sn 4+ E.25ml of 0.10M Fe2+ to Fe3+
which of the following measurements is the least suited to trace organic compound? A. NMR B.fluorescence spectroscopy C. mass spectroscopy C.GC D.LC
the most accurate value for the interatomic distance in a polar diatomic molecula is determined from data given by A. IR B. microwave spectropy C.Raman D.ultraviolet spectrocopy E.nmR
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