\n| (3)<\/td>\n | glucozo<\/td>\n | fructozo<\/td>\n | saccarozo<\/td>\n | mantozo<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n L\u1eddi gi\u1ea3i:<\/b><\/p>\n \u0110\u00e1p \u00e1n A<\/p>\n B\u00e0i 3 (trang 50 sgk H\u00f3a 12 n\u00e2ng cao):\u00a0a. H\u00e3y so s\u00e1nh c\u1ea5u tr\u00fac ph\u00e2n t\u1eed c\u1ee7a xenlulozo v\u1edbi amilozo v\u00e0 amilopectin<\/strong><\/p>\nb. V\u00ec sao s\u1ee3i b\u00f4ng v\u1eeba b\u1ec1n ch\u1eafc v\u1eeba m\u1ec1m m\u1ea1i h\u01a1n so v\u1edbi s\u1ee3i b\u00fan kh\u00f4, m\u00ec kh\u00f4, mi\u1ebfn kh\u00f4<\/strong><\/p>\nL\u1eddi gi\u1ea3i:<\/b><\/p>\n a. Xenlulozo c\u00f3 c\u1ea5u tr\u00fac kh\u00f4ng ph\u00e2n nh\u00e1nh v\u00e0 kh\u00f4ng xo\u1eafn, c\u00f2n tinh b\u1ed9t l\u00e0 h\u1ed7n h\u1ee3p c\u1ee7a hai polisacarit : amilozo kh\u00f4ng ph\u00e2n nh\u00e1nh, kh\u00f4ng du\u1ed7i th\u1eb3ng m\u00e0 xo\u1eafn th\u00e0nh h\u00ecnh l\u00f2 xo, m\u1ed7i v\u00f2ng xo\u1eafn g\u1ed3m 8 m\u1eaft x\u00edch \u03b1-glucozo v\u00e0 amilopectin c\u00f3 c\u1ea5u t\u1ea1o ph\u00e2n nh\u00e1nh<\/p>\n b. S\u1ee3i b\u00f4ng ch\u1ee7 y\u1ebfu g\u1ed3m xenlulozo, c\u00f3 t\u00ednh ch\u1ea5t m\u1ec1m m\u1ea1i b\u1ec1n ch\u1eafc h\u01a1n s\u1ee3i m\u00ec, mi\u1ebfn, b\u00fan kh\u00f4(tinh b\u1ed9t) v\u00ec c\u1ea5u t\u1ea1o h\u00f3a h\u1ecdc c\u1ee7a ch\u00fang kh\u00e1c nhau<\/p>\n B\u00e0i 4 (trang 50 sgk H\u00f3a 12 n\u00e2ng cao):\u00a0a. V\u00ec sao d\u00f9ng xenlulozo \u0111\u1ec3 ch\u1ebf bi\u1ebfn th\u00e0nh s\u1ee3i thi\u00ean nhi\u00ean v\u00e0 s\u1ee3i nh\u00e2n t\u1ea1o, m\u00e0 kh\u00f4ng d\u00f9ng tinh b\u1ed9t<\/strong><\/p>\nb. V\u00ec sao khi \u0111\u1ec3 r\u1edbt H2<\/sub>SO4<\/sub>\u00a0\u0111\u1eadm \u0111\u1eb7c v\u00e0o qu\u1ea7n \u00e1o v\u00e0i s\u1ee3i b\u00f4ng, ch\u1ed7 v\u1ea3i \u0111\u00f3 b\u1ecb \u0111en l\u1ea1i v\u00e0 th\u1ee7ng ngay, c\u00f2n khi b\u1ecb r\u1edbt HCl v\u00e0o v\u1ea3i th\u00ec m\u1ee7n d\u1ea7n r\u1ed3i m\u1edbi b\u1ee5c ra<\/strong><\/p>\nL\u1eddi gi\u1ea3i:<\/strong><\/p>\na. Xenlulozo c\u00f3 c\u1ea5u tr\u00fac kh\u00f4ng ph\u00e2n nh\u00e1nh v\u00e0 kh\u00f4ng xo\u1eafn, c\u00f3 \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc b\u1ec1n nhi\u1ec7t cao h\u01a1n so v\u1edbi tinh b\u1ed9t do \u0111\u00f3 \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 ch\u1ebf t\u1ea1o s\u1ee3i thi\u00ean nhi\u00ean v\u00e0 nh\u00e2n t\u1ea1o<\/p>\n b. Khi \u0111\u1ec3 r\u1edbt H2<\/sub>SO4<\/sub>\u00a0\u0111\u1eadm \u0111\u1eb7c v\u00e0o v\u1ea3i b\u1eb1ng s\u1ee3i b\u00f4ng, ch\u1ed7 v\u1ea3i \u0111\u00f3 b\u1ecb \u0111en l\u1ea1i v\u00e0 th\u1ee7ng ngay do axit sunfuric \u0111\u1eadm \u0111\u1eb7c h\u00fat n\u01b0\u1edbc m\u1ea1nh v\u00e0 l\u00e0m xenlulozo b\u1ecb than h\u00f3a :<\/p>\n(C6<\/sub>H10<\/sub>O5<\/sub>)n<\/sub>\u00a0+ H2<\/sub>SO4<\/sub>\u00a0\u0111\u1eb7c<\/sub>\u00a0\u2192 6nC + H2<\/sub>SO4<\/sub>.5nH2<\/sub>O<\/p>\nKhi \u0111\u1ec3 r\u1edbt HCl v\u00e0o v\u1ea3i b\u1eb1ng s\u1ee3i b\u00f4ng, xenlulozo b\u1ecb th\u1ef7 ph\u00e2n d\u01b0\u1edbi x\u00fac t\u00e1c l\u00e0 axit v\u00f4 c\u01a1 n\u00ean d\u1ea7n m\u00f9n ra sau \u0111\u00f3 m\u1edbi b\u1ecb b\u1ee5c<\/p>\n B\u00e0i 5 (trang 50 sgk H\u00f3a 12 n\u00e2ng cao):\u00a0Vi\u1ebft c\u00e1c ph\u01b0\u01a1ng tr\u00ecnh h\u00f3a h\u1ecdc \u0111i\u1ec1u ch\u1ebf xenlulozo diaxetat v\u00e0 xenlulozo triaxetat t\u1eeb xenlulozo v\u00e0 andehit axetic (CH3<\/sub>CO)2<\/sub>O c\u00f3 m\u1eb7t H2<\/sub>SO4<\/sub>, bi\u1ebft r\u1eb1ng ph\u1ea3n \u1ee9ng c\u00f2n sinh ra axit axetic<\/strong><\/p>\nL\u1eddi gi\u1ea3i:<\/b><\/p>\n ![\"\"](\"https:\/\/lop12.edu.vn\/wp-content\/uploads\/2018\/04\/bai-5-trang-50-sgk-hoa-12-nang-cao.png\") <\/p>\n
B\u00e0i 6 (trang 50 sgk H\u00f3a 12 n\u00e2ng cao):\u00a0Ph\u00e2n t\u1eed kh\u1ed1i c\u1ee7a xenlulozo trong kho\u1ea3ng 1000000 \u2013 2400000. H\u00e3y t\u00ednh g\u1ea7n \u0111\u00fang s\u1ed1 m\u1eaft x\u00edch (C6<\/sub>H10<\/sub>O5<\/sub>)n<\/sub>\u00a0v\u00e0 chi\u1ec1u d\u00e0i m\u1ea1ch xenlulozo theo \u0111\u01a1n v\u1ecb m\u00e9t, bi\u1ebft r\u1eb1ng chi\u1ec1u d\u00e0i m\u1ed7i m\u1eaft x\u00edch C6<\/sub>H10<\/sub>O5<\/sub>\u00a0kho\u1ea3ng 5 Ao<\/sup>\u00a0(1m = 1010<\/sup>Ao<\/sup>)<\/strong><\/p>\nL\u1eddi gi\u1ea3i:<\/b><\/p>\n Ph\u00e2n t\u1eed kh\u1ed1i c\u1ee7a xenlulozo : 162n<\/p>\n V\u1edbi M = 1.000.000 => n = 1000000 : 162 m\u1eaft x\u00edch<\/p>\n V\u1edbi M = 2.400.000 => n = 2400000 : 162 m\u1eaft x\u00edch<\/p>\n Chi\u1ec1u d\u00e0i m\u1ea1ch xenlulozo<\/p>\n => Chi\u1ec1u d\u00e0i m\u1ea1ch xenlulozo l\u00e0 1000000 : 162.10-10<\/sup>m = 3,0864.10-6<\/sup>m<\/p>\n=> Chi\u1ec1u d\u00e0i m\u1ea1ch xenlulozo l\u00e0 2400000 : 162.10-10<\/sup>m = 7,4074.10-6<\/sup>m<\/p>\n","protected":false},"excerpt":{"rendered":"B\u00e0i 1 (trang 49 sgk H\u00f3a 12 n\u00e2ng cao):\u00a0Xenlulozo kh\u00f4ng ph\u1ea3n \u1ee9ng v\u1edbi c\u00e1c t\u00e1c nh\u00e2n n\u00e0o d\u01b0\u1edbi \u0111\u00e2y? A. HNO3\u00a0\u0111\u1eb7c\/H2SO4\u00a0\u0111\u1eb7c\/to B. H2\/Ni C. Cu(OH)2\u00a0+ NH3 D. (CS2\u00a0+ NaOH) L\u1eddi gi\u1ea3i: \u0110\u00e1p \u00e1n B B\u00e0i 2 (trang 49 sgk H\u00f3a 12 n\u00e2ng cao):\u00a0Ch\u1ecdn m\u1ed9t ph\u01b0\u01a1ng \u00e1n \u0111\u00fang \u0111\u1ec3 \u0111i\u1ec1n t\u1eeb ho\u1eb7c c\u1ee5m t\u1eeb v\u00e0o ch\u1ed7 […]<\/p>\n","protected":false},"author":3,"featured_media":25439,"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 2 - B\u00e0i 8: Xenluloz\u01a1<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/lop12.edu.vn\/chuong-2-bai-8-xenlulozo\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ch\u01b0\u01a1ng 2 - B\u00e0i 8: Xenluloz\u01a1\" \/>\n<meta property=\"og:description\" content=\"B\u00e0i 1 (trang 49 sgk H\u00f3a 12 n\u00e2ng cao):\u00a0Xenlulozo kh\u00f4ng ph\u1ea3n \u1ee9ng v\u1edbi c\u00e1c t\u00e1c nh\u00e2n n\u00e0o d\u01b0\u1edbi \u0111\u00e2y? A. HNO3\u00a0\u0111\u1eb7c\/H2SO4\u00a0\u0111\u1eb7c\/to B. H2\/Ni C. Cu(OH)2\u00a0+ NH3 D. (CS2\u00a0+ NaOH) L\u1eddi gi\u1ea3i: \u0110\u00e1p \u00e1n B B\u00e0i 2 (trang 49 sgk H\u00f3a 12 n\u00e2ng cao):\u00a0Ch\u1ecdn m\u1ed9t ph\u01b0\u01a1ng \u00e1n \u0111\u00fang \u0111\u1ec3 \u0111i\u1ec1n t\u1eeb ho\u1eb7c c\u1ee5m t\u1eeb v\u00e0o ch\u1ed7 […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/lop12.edu.vn\/chuong-2-bai-8-xenlulozo\/\" \/>\n<meta property=\"og:site_name\" content=\"Lop12.edu.vn - C\u1ed9ng \u0111\u1ed3ng h\u1ecdc sinh l\u1edbp 12 l\u1edbn nh\u1ea5t t\u1ea1i Vi\u1ec7t Nam\" \/>\n<meta property=\"article:published_time\" content=\"2018-04-05T15:44:19+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/lop12.edu.vn\/wp-content\/uploads\/2018\/04\/bai-5-trang-50-sgk-hoa-12-nang-cao.png\" \/>\n\t<meta property=\"og:image:width\" content=\"750\" \/>\n\t<meta property=\"og:image:height\" content=\"233\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"H\u00e0 Trang\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"H\u00e0 Trang\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/lop12.edu.vn\/chuong-2-bai-8-xenlulozo\/\",\"url\":\"https:\/\/lop12.edu.vn\/chuong-2-bai-8-xenlulozo\/\",\"name\":\"Ch\u01b0\u01a1ng 2 - B\u00e0i 8: Xenluloz\u01a1\",\"isPartOf\":{\"@id\":\"https:\/\/lop12.edu.vn\/#website\"},\"datePublished\":\"2018-04-05T15:44:19+00:00\",\"dateModified\":\"2018-04-05T15:44:19+00:00\",\"author\":{\"@id\":\"https:\/\/lop12.edu.vn\/#\/schema\/person\/2da855e5d06b553ac0065157cc261a45\"},\"breadcrumb\":{\"@id\":\"https:\/\/lop12.edu.vn\/chuong-2-bai-8-xenlulozo\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/lop12.edu.vn\/chuong-2-bai-8-xenlulozo\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/lop12.edu.vn\/chuong-2-bai-8-xenlulozo\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/lop12.edu.vn\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Ch\u01b0\u01a1ng 2 – B\u00e0i 8: Xenluloz\u01a1\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/lop12.edu.vn\/#website\",\"url\":\"https:\/\/lop12.edu.vn\/\",\"name\":\"Lop12.edu.vn - C\u1ed9ng \u0111\u1ed3ng h\u1ecdc sinh l\u1edbp 12\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/lop12.edu.vn\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/lop12.edu.vn\/#\/schema\/person\/2da855e5d06b553ac0065157cc261a45\",\"name\":\"H\u00e0 Trang\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/lop12.edu.vn\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/545a8100db1147f314111301d261dc33?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/545a8100db1147f314111301d261dc33?s=96&d=mm&r=g\",\"caption\":\"H\u00e0 Trang\"},\"url\":\"https:\/\/lop12.edu.vn\/author\/trangvth2\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Ch\u01b0\u01a1ng 2 - B\u00e0i 8: Xenluloz\u01a1","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/lop12.edu.vn\/chuong-2-bai-8-xenlulozo\/","og_locale":"en_US","og_type":"article","og_title":"Ch\u01b0\u01a1ng 2 - B\u00e0i 8: Xenluloz\u01a1","og_description":"B\u00e0i 1 (trang 49 sgk H\u00f3a 12 n\u00e2ng cao):\u00a0Xenlulozo kh\u00f4ng ph\u1ea3n \u1ee9ng v\u1edbi c\u00e1c t\u00e1c nh\u00e2n n\u00e0o d\u01b0\u1edbi \u0111\u00e2y? A. HNO3\u00a0\u0111\u1eb7c\/H2SO4\u00a0\u0111\u1eb7c\/to B. H2\/Ni C. Cu(OH)2\u00a0+ NH3 D. (CS2\u00a0+ NaOH) L\u1eddi gi\u1ea3i: \u0110\u00e1p \u00e1n B B\u00e0i 2 (trang 49 sgk H\u00f3a 12 n\u00e2ng cao):\u00a0Ch\u1ecdn m\u1ed9t ph\u01b0\u01a1ng \u00e1n \u0111\u00fang \u0111\u1ec3 \u0111i\u1ec1n t\u1eeb ho\u1eb7c c\u1ee5m t\u1eeb v\u00e0o ch\u1ed7 […]","og_url":"https:\/\/lop12.edu.vn\/chuong-2-bai-8-xenlulozo\/","og_site_name":"Lop12.edu.vn - C\u1ed9ng \u0111\u1ed3ng h\u1ecdc sinh l\u1edbp 12 l\u1edbn nh\u1ea5t t\u1ea1i Vi\u1ec7t Nam","article_published_time":"2018-04-05T15:44:19+00:00","og_image":[{"width":750,"height":233,"url":"https:\/\/lop12.edu.vn\/wp-content\/uploads\/2018\/04\/bai-5-trang-50-sgk-hoa-12-nang-cao.png","type":"image\/png"}],"author":"H\u00e0 Trang","twitter_card":"summary_large_image","twitter_misc":{"Written by":"H\u00e0 Trang","Est. reading time":"4 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/lop12.edu.vn\/chuong-2-bai-8-xenlulozo\/","url":"https:\/\/lop12.edu.vn\/chuong-2-bai-8-xenlulozo\/","name":"Ch\u01b0\u01a1ng 2 - B\u00e0i 8: Xenluloz\u01a1","isPartOf":{"@id":"https:\/\/lop12.edu.vn\/#website"},"datePublished":"2018-04-05T15:44:19+00:00","dateModified":"2018-04-05T15:44:19+00:00","author":{"@id":"https:\/\/lop12.edu.vn\/#\/schema\/person\/2da855e5d06b553ac0065157cc261a45"},"breadcrumb":{"@id":"https:\/\/lop12.edu.vn\/chuong-2-bai-8-xenlulozo\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/lop12.edu.vn\/chuong-2-bai-8-xenlulozo\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/lop12.edu.vn\/chuong-2-bai-8-xenlulozo\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/lop12.edu.vn\/"},{"@type":"ListItem","position":2,"name":"Ch\u01b0\u01a1ng 2 – B\u00e0i 8: Xenluloz\u01a1"}]},{"@type":"WebSite","@id":"https:\/\/lop12.edu.vn\/#website","url":"https:\/\/lop12.edu.vn\/","name":"Lop12.edu.vn - C\u1ed9ng \u0111\u1ed3ng h\u1ecdc sinh l\u1edbp 12","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/lop12.edu.vn\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/lop12.edu.vn\/#\/schema\/person\/2da855e5d06b553ac0065157cc261a45","name":"H\u00e0 Trang","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/lop12.edu.vn\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/545a8100db1147f314111301d261dc33?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/545a8100db1147f314111301d261dc33?s=96&d=mm&r=g","caption":"H\u00e0 Trang"},"url":"https:\/\/lop12.edu.vn\/author\/trangvth2\/"}]}},"_links":{"self":[{"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/posts\/25438"}],"collection":[{"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/comments?post=25438"}],"version-history":[{"count":1,"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/posts\/25438\/revisions"}],"predecessor-version":[{"id":25440,"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/posts\/25438\/revisions\/25440"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/media\/25439"}],"wp:attachment":[{"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/media?parent=25438"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/categories?post=25438"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/tags?post=25438"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}} |