今有c(1/2H2SO4)=4mol/L的H2SO4溶液250ml,问,再加多少ml98%的浓H2SO4,能配成c(1/2H2SO_化学解答

今有c(1/2H2SO4)=4mol/L的H2SO4溶液250ml,问,再加多少ml98%的浓H2SO4,能配成c(1/2H2SO4)=6mol/L的溶液

人气：466 ℃　时间：2020-01-21 18:36:40

解答

(1) 98% H2SO4 ==> c(1/2H2SO4) == 36.8mol/L
(2)4*250 + 36.8v == 6(250+v)
(3)v == 16.23ml