\n<\/td>\n 5. R-CO-R\u2019<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\nL\u1eddi gi\u1ea3i:<\/b><\/p>\n
1 \u2013 C , 2 \u2013 A , 3 \u2013 B, 4 \u2013 D.<\/p>\n
B\u00e0i 2 (trang 7 sgk H\u00f3a 12 n\u00e2ng cao):\u00a0a. Vi\u1ebft c\u00f4ng th\u1ee9c c\u1ea5u t\u1ea1o c\u00e1c \u0111\u1ed3ng ph\u00e2n \u1ee9ng v\u1edbi c\u00f4ng th\u1ee9c ph\u00e2n t\u1eed C2<\/sub>H4<\/sub>O2<\/sub><\/strong><\/p>\nb. G\u1ecdi t\u00ean c\u00e1c \u0111\u1ed3ng ph\u00e2n c\u00f3 nh\u00f3m C=O<\/p>\n
c. Nh\u1eefng ch\u1ea5t n\u00e0o c\u00f3 ph\u1ea3n \u1ee9ng tr\u00e1ng b\u1ea1c, v\u00ec sao?<\/p>\n
L\u1eddi gi\u1ea3i:<\/b><\/p>\n
C\u00f4ng th\u1ee9c c\u1ea5u t\u1ea1o c\u00e1c \u0111\u1ed3ng ph\u00e2n \u1ee9ng v\u1edbi c\u00f4ng th\u1ee9c ph\u00e2n t\u1eed C2<\/sub>H4<\/sub>O2<\/sub><\/p>\n <\/p>\n
Trong c\u00e1c \u0111\u1ed3ng ph\u00e2n tr\u00ean, \u0111\u1ed3ng ph\u00e2n (2) v\u00e0 (3) c\u00f3 ph\u1ea3n \u1ee9ng tr\u00e1ng b\u1ea1c do ph\u00e2n t\u1eed c\u1ee7a ch\u00fang c\u00f3 nh\u00f3m ch\u1ee9c andehit \u2013 CH = O<\/p>\n
<\/p>\n
B\u00e0i 3 (trang 7 sgk H\u00f3a 12 n\u00e2ng cao):\u00a0a. So s\u00e1nh ph\u1ea3n \u1ee9ng th\u1ee7y ph\u00e2n este trong dung d\u1ecbch axit v\u00e0 trong dung d\u1ecbch ki\u1ec1m<\/strong><\/p>\nb. Ho\u00e0n th\u00e0nh c\u00e1c ph\u01b0\u01a1ng tr\u00ecnh ph\u1ea3n \u1ee9ng<\/strong><\/p>\nL\u1eddi gi\u1ea3i:<\/b><\/p>\n\n\n\nPh\u1ea3n \u1ee9ng th\u1ee7y ph\u00e2n este trong dung d\u1ecbch axit<\/td>\n Ph\u1ea3n \u1ee9ng th\u1ee7y ph\u00e2n este trong dung d\u1ecbch ki\u1ec1m<\/td>\n<\/tr>\n \n– L\u00e0 ph\u1ea3n \u1ee9ng thu\u1eadn ngh\u1ecbch<\/p>\n– S\u1ea3n ph\u1ea9m t\u1ea1o ra l\u00e0 axit v\u00e0 ancol<\/td>\n
– L\u00e0 ph\u1ea3n \u1ee9ng m\u1ed9t chi\u1ec1u<\/p>\n– S\u1ea3n ph\u1ea9m t\u1ea1o ra l\u00e0 mu\u1ed1i v\u00e0 ancol<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
<\/p>\n
N\u1ebfu NaOH c\u00f2n d\u01b0<\/p>\n
C6<\/sub>H5<\/sub>OH + NaOH \u2192 C6<\/sub>H5<\/sub>ONa + H2<\/sub>O<\/p>\nV\u1eady ph\u01b0\u01a1ng tr\u00ecnh h\u00f3a h\u1ecdc t\u1ed5ng qu\u00e1t :<\/p>\n
C6<\/sub>H5<\/sub>OCHOCH3<\/sub>\u00a0+ 2NaOH \u2192 C6<\/sub>H5<\/sub>ONa + CH3<\/sub>COONa + H2<\/sub>O<\/p>\nB\u00e0i 4 (trang 7 sgk H\u00f3a 12 n\u00e2ng cao):\u00a0C\u00e1ch n\u00e0o sau \u0111\u00e2y c\u00f3 th\u1ec3 d\u00f9ng \u0111\u1ec3 \u0111i\u1ec3u ch\u1ebf etyl axetat?<\/strong><\/p>\nA. \u0110un h\u1ed3i l\u01b0u h\u1ed7n h\u1ee3p etanol, gi\u1ea5m v\u00e0 axit sunfuric \u0111\u1eb7c<\/strong><\/p>\nB. \u0110un h\u1ed3i l\u01b0u h\u1ed7n h\u1ee3p axit axetic, r\u01b0\u1ee3u tr\u1eafng v\u00e0 axit sunfuric \u0111\u1eb7c<\/strong><\/p>\nC. \u0110un h\u1ed7n h\u1ee3p etanol, axit axetic v\u00e0 axit sunfuric \u0111\u1eb7c trong c\u1ed1c th\u1ee7y tinh ch\u1ecbu nhi\u1ec7t<\/strong><\/p>\nD. \u0110un h\u1ed3i l\u01b0u h\u1ed7n h\u1ee3p etanol, axit axetic v\u00e0 axit sufuric \u0111\u1eb7c<\/strong><\/p>\nL\u1eddi gi\u1ea3i:<\/b><\/p>\n
\u0110\u00e1p \u00e1n D<\/p>\n
B\u00e0i 5 (trang 7 sgk H\u00f3a 12 n\u00e2ng cao):\u00a0Cho axit salixylic (axit o-hidrobenzoic) ph\u1ea3n \u1ee9ng v\u1edbi metanol c\u00f3 axit sunfuric x\u00fac t\u00e1c ng\u01b0\u1eddi ta thu \u0111\u01b0\u1ee3c metyl salixylat (C8<\/sub>H8<\/sub>O3<\/sub>) d\u00f9ng l\u00e0m thu\u1ed1c xoa b\u00f3p gi\u1ea3m \u0111au. Cho axit salixylic ph\u1ea3n \u1ee9ng v\u1edbi anhidrit axetic (CH3<\/sub>CH2<\/sub>)2<\/sub>O thu \u0111\u01b0\u1ee3c axit axetyl salixylic (C9<\/sub>H8<\/sub>O4<\/sub>) d\u00f9ng l\u00e0m thu\u1ed1c c\u1ea3m (aspirin).<\/strong><\/p>\na, h\u00e3y d\u00f9ng c\u00f4ng th\u1ee9c c\u1ea5u t\u1ea1o vi\u1ebft c\u00e1c ph\u01b0\u01a1ng tr\u00ecnh ph\u1ea3n \u1ee9ng \u0111\u00e3 n\u00eau<\/strong><\/p>\nb, Vi\u1ebft ph\u01b0\u01a1ng tr\u00ecnh ph\u1ea3n \u1ee9ng c\u1ee7a metyl salixylat v\u00e0 axit axetyl salixylic v\u1edbi dung d\u1ecbch NaOH<\/strong><\/p>\nL\u1eddi gi\u1ea3i:<\/b><\/p>\n
<\/p>\n
B\u00e0i 6 (trang 8 sgk H\u00f3a 12 n\u00e2ng cao):\u00a0\u0110\u1ec3 x\u00e0 ph\u00f2ng h\u00f3a ho\u00e0n to\u00e0n 2,22 g h\u1ed7n h\u1ee3p hai este \u0111\u1ed3ng ph\u00e2n A v\u00e0 B c\u1ea7n d\u00f9ng h\u1ebft 30ml dung d\u1ecbch NaOH 1M. Khi \u0111\u1ed1t ch\u00e1y ho\u00e0n to\u00e0n h\u1ed7n h\u1ee3p hai este \u0111\u00f3 th\u00ec thu \u0111\u01b0\u1ee3c kh\u00ed CO2<\/sub>\u00a0v\u00e0 h\u01a1i n\u01b0\u1edbc v\u1edbi th\u1ec3 t\u00edch VH2O<\/sub>\u00a0: VCO2<\/sub>\u00a0= 1 : 1. H\u00e3y x\u00e1c \u0111\u1ecbnh c\u00f4ng th\u1ee9c c\u1ea5u t\u1ea1o v\u00e0 g\u1ecdi t\u00ean A v\u00e0 B<\/strong><\/p>\nL\u1eddi gi\u1ea3i:<\/b><\/p>\n
\u0110\u1ed1t ch\u00e1y este ta thu \u0111\u01b0\u1ee3c nCO2<\/sub>\u00a0= nH2O<\/sub>\u00a0=> A, B l\u00e0 2 este no, \u0111\u01a1n ch\u1ee9c c\u00f3 c\u00f4ng th\u1ee9c d\u1ea1ng Cn<\/sub>H2n<\/sub>O2<\/sub>\u00a0hay RCOOR\u2019.<\/p>\nRCOOR\u2019 + NaOH \u2192 RCOONa + R\u2019OH (1)<\/p>\n
Theo (1) th\u00ec neste<\/sub>\u00a0= nNaOH<\/sub>\u00a0= 0,03.1 = 0,03 mol<\/p>\n=> Meste<\/sub>\u00a0= meste<\/sub>\u00a0: neste<\/sub>\u00a0= 2,22 : 0,03 = 74 = MCn<\/sub>H2n<\/sub>O2<\/sub><\/p>\n=> 14n + 32 = 74 => n = 3<\/p>\n
CTPT 2 este : C3<\/sub>H6<\/sub>O2<\/sub><\/p>\nCTCT :<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
B\u00e0i 1 (trang 7 sgk H\u00f3a 12 n\u00e2ng cao):\u00a0H\u00e3y x\u1ebfp t\u1eebng c\u00f4ng th\u1ee9c v\u00e0o m\u1ed9t trong c\u00e1c lo\u1ea1i ch\u1ea5t sau A. Axit cacboxylic 1. R-CO-OR\u2019 B. Anhidrit axit 2. R-COOH C. Este 3. R-CO-O-OC-R D. Halogenua axit 4. R-CO-Cl 5. R-CO-R\u2019 L\u1eddi gi\u1ea3i: 1 \u2013 C , 2 \u2013 A , 3 \u2013 B, 4 […]<\/p>\n","protected":false},"author":3,"featured_media":25544,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[1306],"tags":[1436,1435],"yoast_head":"\n
Ch\u01b0\u01a1ng 1 - B\u00e0i 1: Este<\/title>\n \n \n \n \n \n \n \n \n \n \n\t \n\t \n\t \n \n \n \n\t \n\t \n\t \n