⑧表山手学花 n Medical University 省级精品课程申报 explain your choices: (1)Conjugate acid-base pair (2)pH of the buffer (3)Concentration of buffer-component reservoirs ()④Buffer range (5)Buffer-component ratio (6)pK of the acid component 注：Conjugate acid-base pair-一共轭酸-碱对，Buffer range-一缓冲范围 Buffer-component ratio-—缓冲比， 【解】选(3)和（⑤），缓冲容量取决于总浓度和缓冲比。 16,What are the [HO]and the pH of a propionate buffer that consists of 0.25 mol.L CH;CH2COONa and 0.15 mol-L CH;CH2COOH K (CH;CH2COOH)=1.3x10 注：propionate-一丙酸盐 【解】pK(CH3CH,C00H=-g1.3x105=4.89 pH=pK,B时 ,[A] m4w+器是- H,07=7.8x106m0lL 17 What the pH of a buffer that consists of 0.55 mol.L HCOOH and 0.63 mol.L HCOONa?pK,=3.75 【Solution】 pI=p底 375+6S-381 18.A buffer is prepared by mixing 50.0 mL of 0.050 molL sodium bicarbonate and 10.0mLof 0.10 mol-LNaOH.pK.()-10.32