1 lipit axit béo O CH2—O—C——R1 Các axit béo O CH—O—C——R2 O CH2—O—C——R3 • • • không phân nhánh CTPT CTCT axit panmitic C15H31COOH CH3(CH2)14COOH 2H 2H axit stearic C17H35COOH CH3(CH2)16COOH axit oleic C17H33COOH CH3(CH2)7CH=CH(CH2)7COOH axit linoelic C17H31COOH CH3(CH2)4CH=CHCH2CH=CH(CH2)7COOH Axit no Axit không no • • VD1: O CH2—O—C——(CH2)14CH3 O CH—O—C——(CH2)14CH3 O CH2—O—C——(CH2)14CH3 axit panmitic CH3(CH2)14COOH tripanmitin 1 A) C17H31COOH C) C17H35COOH B) C15H31COOH D) C17H33COOH A) C16H32O2 C) C18H34O2 B) C18H36O2 D) C18H32O2 A) axit stearic C) axit linoelic B) axit oleic D) O CH2—O—C——(CH2)16CH3 O CH—O—C——(CH2)16CH3 O CH2—O—C——(CH2)16CH3 A) tristearin C) trilinolein B) triolein D) tripanmitin O CH2—O—C——(CH2)7CH=CH(CH2)7CH3 O CH—O—C——(CH2)7CH=CH(CH2)7CH3 O CH2—O—C——(CH2)7CH=CH(CH2)7CH3 A) tristearin C) trilinolein B) triolein D) tripanmitin A) (CH3[CH2]14COO)3C3H5 B) (CH3[CH2]7CH=CH[CH2]5COO)3C3H5 C) (CH3[CH2]16COO)3C3H5 D) (CH3[CH2]7CH=CH[CH2]7COO)3C3H5 2 • • VD2: axit no • • axit không no – – O CH2—O—C——R1 CH2—OH + R1COONa O CH—O—C——R2 + NaOH to CH—OH + R2COONa O CH2—O—C——R3 CH2—OH + R3COONa 2, VD3: O O CH2—O—C—(CH2)16CH3 CH2—O—C—(CH2)7CH=CH(CH2)7CH3 O CH—O—C—(CH2)7CH=CH(CH2)7CH3 O CH2—O—C—(CH2)7CH=CH(CH2)7CH3 Br2) vào liên + 3H2 Ni to O CH—O—C—(CH2)16CH3 O CH2—O—C—(CH2)16CH3 Triolein không A) H2O, xúc tác H2SO4 C) Cu(OH)2 B) Br2 D) Trilinolein không A) H2O (xúc tác H2SO4 loãng, đun nóng) B) Cu(OH)2 C) D) H2 (xúc tác Ni, đun nóng) 2, A) A CH3 B) C) D) o sau sai? A) B) C) D) glixerol B glixerit hay triaxylglixerol 17H33COO)3C3H5 (C17H35COO)3C3H5 A) B) C) D) C Triolein A) axit oleic C) axit stearic H2 (d−) xt,to X NaOH (d−) to Y HCl Z B) axit linoleic D) axit panmitic D Cho este: etyl fomat (1), vinyl axetat (2), triolein (3), metyl acrylat (4), phenyl axetat (5) Dãy A) (1), (3), (4) C) (1), (2), (3) B) (3), (4), (5) D) (2), (3), (5) E NaOH (dư), đun nóng sinh ancol A) B) C) D) F stearic axit panmitic A) B) D) G C15H31 A) C) 17H35COOH B) C) D) H A) C15H31COOH C17H35COOH B) C17H33COOH C15H31COOH C) C17H31COOH C17H33COOH D) C17H33COOH C17H35COOH I A) axit stearic axit oleic B) axit stearic axit linoleic C) axit linoleic axit panmitic D) axit stearic axit panmitic miligam (mg) KOH AI = mKOH (mg) (gam) m VD4: mKOH 5, 10 nNaOH 56 (mg) (mmol) nKOH mNaOH (mmol) 40 (mg) miligam KOH VD5: (1) Axit + NaOH nNaOH (*) nKOH 200 56 Xà phòng + H2O (*) 25 (mmol) = 0,025 (mol) nH2O nNaOH (*) 0, 025 (mol) (2) Triglixerit + 3NaOH 3Xà phòng + C3H5(OH)3 (**) nNaOH (**) = 3a maxit mtriglixerit mNaOH mxµ phßng mH2O mglixerin chÊt bÐo 200 a 0, 025 3a 40 207,55 0, 025 18 92a 0, 25 (mol) NaOH = 0,025 + 0,25= 0,775 (mol) mNaOH = 31 (gam) J A) 4,8 B) 7,2 C) 6,0 D) 5,5 A) 0,150 B) 0,200 C) 0,280 D) 0,075 A) 300 B) 150 C) 200 D) 250 A) B) C) D) K L M N A) 108,107 gam C) 108,265 gam B) 103,178 gam D) 110,324 gam A) 1031,45 gam C) 1009,05 gam B) 1103,15 gam D) 1021,35 gam òng A) 17,83 gam C) 16,68 gam B) 18,24 gam D) 18,38 gam A) 5,98 gam C) 5,52 gam B) 4,62 gam D) 4,60 gam O P Q Câu C Câu E B C F B D G A A H D B I A D J C C K D B L C A M B A D N C B D O C C C P A D A Q C