7.4.1配位滴定曲线ZHEHA2）滴定至化学计量点前：例如当滴定至还剩余0.02ml钙离子溶液时：0.01000x0.02[Ca2+] == 5.0x10-6 mol-L-l:20.00+19.98pCa = 5.30.（3）化学计量点：CaY较为稳定，溶液中钙离子浓度直接据平衡求解，并忽略CaY的解离，滴定反应：Ca2++Y4=CaY2[CaY]= 1010.24KCaY[Ca]总[Y]总5Zhang Li-qing
7.4.1配位滴定曲线ZHEHANGCNCEATECHNOOG[CaY]=1010.24R6Ca2++ Y4 =CaY2CaY[Ca]意[Y]总[CaY] = 0.01000/2mol-L-1:[Ca]总=[Y]总-可解得:[Ca]总=5.4x107 mol-L-1pCa= 6.27.（4化学计量点后：例如EDTA溶液过量0.02mL时：计量点附近[CaY]变化极小,[CaY]~0.01000/2mol-L-10.01000x 0.02[Y] == 5.0x10-6 mol-L-120.00 + 20.026Zhang Li-qing
7.4.1配位滴定曲线ZHEHANHUNIVERSSCIENCESTECHNOLOG0.01000 x 0.02[Y] == 5.0x10 6 mol-L-120.00 + 20.02[CaY]ACaY[Cal总[Y]总可求得：pCa=7.242.滴定突跃的影响因素a. IgkMy,b.配位滴定的pHTZhang Li-qing
7.4.1配位滴定曲线ZHEJANGUNIVERSITYOFSCIENCE&TECHNOLOGIgk的影响：1ogKr=1414pM1212101088Igko,My大664滴定突跃大4220100%200%滴定百分数8Zhang Li-qing
7.4.1配位滴定曲线ZHEJANGUNIVERSITYOFSCIENCEATECHNOLOGpH的影响：pH=121010eed98配位滴定pH大6滴定突跃大g21EDTA加入量ZhangLi-qing