V LFe2(SO4)3溶液中含a gSO42-,取此溶液V/2 L用水稀释成2V L,则稀释后溶液的C(Fe3+)
A.a/(576V)mol/L | B.125a/(36V)mol/L |
C.250/(36V)mol/L | D.250a/(48V)mol/L |
V LFe2(SO4)3溶液中含a gSO42-,取此溶液V/2 L用水稀释成2V L,则稀释后溶液的C(Fe3+)
A.a/(576V)mol/L | B.125a/(36V)mol/L |
C.250/(36V)mol/L | D.250a/(48V)mol/L |