脂肪酸的酸性 FCHhCOOH CICH2COoH BrCH2COOH ICH) COOH CH3COOH a 2.66 280 290 3.8 4.76 CH3CH2CHCICOOH CH3CHCICH,COOH CICH,,CH, COOH CH3 CH2 CH, COOH 441 4.70 4.8 CH3 COOH CH3CHCOOH(CH3)2CHCOOH(CH3)3CCOOH Ka 4.76 487 486 526 +C(3) +C(2 +C(1)FCH2COOH ClCH2COOH BrCH2COOH ICH2COOH CH3COOH pKa 2.66 2.80 2.90 3.18 4.76 pKa 2.82 4.41 4.70 4.82 CH3CH2CHClCOOH CH3CHClCH2COOH ClCH2CH2CH2COOH CH3CH2CH2COOH pKa 4.76 4.87 4.86 5.26 +C(3) +C(2) +C(1) +I +I +I +I CH3COOH CH3CH2COOH (CH3)2CHCOOH (CH3)3CCOOH 脂肪酸的酸性