www.tuhoc.edu.vn 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 htttp://tuhoc.edu.vn/blog O CH2—O—C——(CH2)14CH3 axit panmitic CH3(CH2)14COOH tripanmitin www.tuhoc.edu.vn 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 htttp://tuhoc.edu.vn/blog www.tuhoc.edu.vn • • 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)7CH=CH(CH2)7CH3 CH2—O—C—(CH2)16CH3 O CH—O—C—(CH2)7CH=CH(CH2)7CH3 + 3H2 Ni to O CH—O—C—(CH2)16CH3 O CH2—O—C—(CH2)7CH=CH(CH2)7CH3 Br2) vào liên O CH2—O—C—(CH2)16CH3 htttp://tuhoc.edu.vn/blog Triolein không A) H2O, xúc tác H2SO4 C) Cu(OH)2 B) Br2 D) www.tuhoc.edu.vn 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 htttp://tuhoc.edu.vn/blog www.tuhoc.edu.vn 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 htttp://tuhoc.edu.vn/blog www.tuhoc.edu.vn 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) htttp://tuhoc.edu.vn/blog www.tuhoc.edu.vn 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 htttp://tuhoc.edu.vn/blog www.tuhoc.edu.vn 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 htttp://tuhoc.edu.vn/blog