1、例3:Cl- + 定过量AgNO3 标液 剩余AgNO3标液 NHNH4 4SCNSCN标液标液 Fe3+ 指示剂 返滴定 淡红色Fe(SCN)2+)或(mmolmolMmnBBB)()/()/(LmmolLmolVMmVnCBBBBBB或)/(1000mLgVMCVmTAAAA)或(mLmgmLg/)/( tannTAnatnATCVatCVAATTCVtaCVTTAAmMatCVAATTmatCVMATTA/1000TmVmAAA1000CTMAAA1000TCMAAA1000TmVTAATmatCVMATTA/1000CtaTMTT AA1000TmVatC MTAATTA1000AmS
2、A% 100%matCVMATTA1000AatCVMSTTA%1000100%ATVST AT% 100%TmVTAAT)200(1000. 02001200. 0V)(401000. 0200)1000. 01200. 0(mLV232CONaHCLnnCVnmMHCLHCLNa CONa CONa CO221000232323)(240 .1062 . 010002500. 02mlVHCL232CONaHCnn)/(1000. 00 .1061000005300. 02100032LmolMTatCACONaHCLHCLmgFe0005000215001075.( )2132HCLCONann%70.99%10010001230. 00 .10650.231006. 021%32CONaCaO%.0005610006000100%9333%