A.1摩爾/升HAc+1摩爾/升NaAc B.1摩爾/升HAc+1摩爾/升NaCl C.1摩爾/升HaC+1摩爾/升NaOH
A.C(HAC.=0.02摩爾/升溶液 B.C(HAC.=0.02摩爾/升與C(NaAC.=0.02摩爾/升等體積混合液 C.C(HAC.=0.02摩爾/升與C(NaOH)=0.02摩爾/升等體積混合液
A.沉淀減少 B.沉淀不變 C.沉淀增加