室温下,VaL pH=a的强酸与VbL pH=b的强碱溶液混合,混合后溶液p

   室温下,VaL pHa的强酸与VbL pHb的强碱溶液混合,混合后溶液pH3。(混合前后体积变化忽略不计) 已知ab13Vb4.5Va,则a值为

A  1    B  2    C  3    D  4

答案

B

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