将0.1mol/L的H2S溶液和0.2mol/L NaOH溶液等体积混合,下列关
题型:选择题
问题:
将0.1mol/L的H2S溶液和0.2mol/L NaOH溶液等体积混合,下列关系正确的是 ( )
A.[Na+]>[S2-]>[H+]>[HS-]>[OH-]
B.1/2[Na+]=[S2-]+[HS-]+[H2S]
C.[Na+]+[H+]=1/2[S2-]+[HS-]+[OH-]
D.[S2-]+[HS-] +[H2S] =0.05mol/L
将0.1mol/L的H2S溶液和0.2mol/L NaOH溶液等体积混合,下列关系正确的是 ( )
A.[Na+]>[S2-]>[H+]>[HS-]>[OH-]
B.1/2[Na+]=[S2-]+[HS-]+[H2S]
C.[Na+]+[H+]=1/2[S2-]+[HS-]+[OH-]
D.[S2-]+[HS-] +[H2S] =0.05mol/L