常温下,将Na 2 CO 3 和NaHCO 3 两种盐按物质的量比1:2混合后溶于水配成稀溶液,下列有关该混合溶液说法正确的是
A.
溶液中c(CO 3 2 - ):c(HCO 3 - )<1:2
B.
溶液中c(OH - )=c(H + )+c(HCO 3 - )+c(H 2 CO 3 )
C.
向混合液中滴加少量稀盐酸或NaOH溶液,HCO 3 - 的物质的量均会减少
D.
将混合液蒸干,水解加剧,最终得NaOH固体
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