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{"id":24593,"date":"2018-03-29T17:11:02","date_gmt":"2018-03-29T10:11:02","guid":{"rendered":"https:\/\/lop12.edu.vn\/?p=24593"},"modified":"2018-03-29T17:11:02","modified_gmt":"2018-03-29T10:11:02","slug":"chuong-1-bai-3-khai-niem-ve-xa-phong-va-chat-giat-rua-tong-hop","status":"publish","type":"post","link":"https:\/\/lop12.edu.vn\/chuong-1-bai-3-khai-niem-ve-xa-phong-va-chat-giat-rua-tong-hop\/","title":{"rendered":"Ch\u01b0\u01a1ng 1 – B\u00e0i 3: Kh\u00e1i ni\u1ec7m v\u1ec1 x\u00e0 ph\u00f2ng v\u00e0 ch\u1ea5t gi\u1eb7t r\u1eeda t\u1ed5ng h\u1ee3p"},"content":{"rendered":"

B\u00e0i 1 (trang 15 SGK H\u00f3a 12):\u00a0X\u00e0 ph\u00f2ng l\u00e0 g\u00ec?<\/strong><\/p>\n

L\u1eddi gi\u1ea3i:<\/b><\/p>\n

X\u00e0 ph\u00f2ng l\u00e0 h\u1ed7n h\u1ee3p mu\u1ed1i natri ho\u1eb7c mu\u1ed1i kali c\u1ee7a axit b\u00e9o c\u00f3 th\u00eam m\u1ed9t s\u1ed1 ch\u1ea5t ph\u1ee5 gia.<\/p>\n

B\u00e0i 2 (trang 15 SGK H\u00f3a 12):\u00a0Ghi \u0110 (\u0111\u00fang ) ho\u1eb7c S (sai ) v\u00e0o \u00f4 tr\u1ed1ng b\u00ean c\u1ea1nh c\u00e1c c\u00e2u sau:<\/strong><\/p>\n

a) X\u00e0 ph\u00f2ng l\u00e0 s\u1ea3n ph\u1ea9m c\u1ee7a ph\u1ea3n \u1ee9ng x\u00e0 ph\u00f2ng h\u00f3a.<\/p>\n

b) Mu\u1ed1i natri ho\u1eb7c kali c\u1ee7a axit h\u1eefu c\u01a1 l\u00e0 th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a x\u00e0 ph\u00f2ng.<\/p>\n

c) Khi \u0111un n\u00f3ng ch\u1ea5t b\u00e9o v\u1edbi dung d\u1ecbch NaOH ho\u1eb7c KOH ta \u0111\u01b0\u1ee3c x\u00e0 ph\u00f2ng.<\/p>\n

d) T\u1eeb d\u1ea7u m\u1ecf c\u00f3 th\u1ec3 s\u1ea3n xu\u1ea5t \u0111\u01b0\u1ee3c ch\u1ea5t gi\u1eb7t t\u1ed5ng h\u1ee3p.<\/p>\n

L\u1eddi gi\u1ea3i:<\/b><\/p>\n

a. \u0110<\/p>\n

b. S. C\u00e2u \u0111\u00fang ph\u1ea3i l\u00e0 \u201cmu\u1ed1i natri ho\u1eb7c kali c\u1ee7a axit b\u00e9o l\u00e0 th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a x\u00e0 ph\u00f2ng\u201d.<\/p>\n

c. \u0110<\/p>\n

d. \u0110<\/p>\n

B\u00e0i 3 (trang 15 SGK H\u00f3a 12):\u00a0M\u1ed9t lo\u1ea1i m\u1ee1 \u0111\u1ed9ng v\u1eadt ch\u1ee9 20% tristearoylglixerol m, 30% tripanmitoylgrixerol v\u00e0 50 % trioleoylgixerol (v\u1ec1 kh\u1ed1i l\u01b0\u1ee3ng)<\/strong><\/p>\n

a) Vi\u1ebft ph\u01b0\u01a1ng tr\u00ecnh h\u00f3a h\u1ecdc c\u1ee7a c\u00e1c ph\u1ea3n \u1ee9ng x\u1ea3y ra khi th\u1ef1c hi\u1ec7n ph\u1ea3n \u1ee9ng x\u00e0 ph\u00f2ng h\u00f3a lo\u1ea1i m\u1ee1 tr\u00ean.<\/p>\n

b) T\u00ednh kh\u1ed1i l\u01b0\u1ee3ng mu\u1ed1i thu \u0111\u01b0\u1ee3c khi x\u00e0 ph\u00f2ng h\u00f3a 1 t\u1ea5n m\u1ee1 tr\u00ean b\u1eb1ng dung d\u1ecbch NaOH, gi\u1ea3 s\u1eed hi\u1ec7u su\u1ea5t c\u1ee7a qu\u00e1 tr\u00ecnh \u0111\u1ea1t 90%.<\/p>\n

L\u1eddi gi\u1ea3i:<\/b><\/p>\n

Trong 1 t\u1ea5n m\u1ee1 c\u00f3 0,2 t\u1ea5n (C17<\/sub>H35<\/sub>COO)3<\/sub>C3<\/sub>H5<\/sub><\/p>\n

0,3 t\u1ea5n (C15<\/sub>H31<\/sub>COO)3<\/sub>C3<\/sub>H5<\/sub><\/p>\n

0,5 t\u1ea5n (C17<\/sub>H33<\/sub>COO)3<\/sub>C3<\/sub>H5<\/sub><\/p>\n

Gi\u1ea3 s\u1eed c\u00f3 1 kmol (C17<\/sub>H35<\/sub>COO)3<\/sub>C3<\/sub>H5<\/sub><\/p>\n

1 kmol (C15<\/sub>H31<\/sub>COO)3<\/sub>C3<\/sub>H5<\/sub><\/p>\n

1 kmol (C17<\/sub>H33<\/sub>COO)3<\/sub>C3<\/sub>H5<\/sub><\/p>\n

Ph\u01b0\u01a1ng tr\u00ecnh h\u00f3a h\u1ecdc<\/p>\n

\"\"<\/p>\n

Theo pt (1) , (2), (3) kh\u1ed1i l\u01b0\u1ee3ng mu\u1ed1i thu \u0111\u01b0\u1ee3c l\u00e0 :<\/p>\n

\"\"<\/p>\n

V\u00ec hi\u1ec7u su\u1ea5t l\u00e0 90% n\u00ean kh\u1ed1i l\u01b0\u1ee3ng mu\u1ed1i thu \u0111\u01b0\u1ee3c l\u00e0 :<\/p>\n

\"\"<\/p>\n

B\u00e0i 4 (trang 16 SGK H\u00f3a 12):\u00a0N\u00eau nh\u1eefng \u01b0u \u0111i\u1ec3m v\u00e0 h\u1ea1n ch\u1ebf c\u1ee7a vi\u1ec7c d\u00f9ng x\u00e0 ph\u00f2ng so v\u1edbi d\u00f9ng h\u00f3a ch\u1ea5t gi\u1eb7t r\u1eeda t\u1ed5ng h\u1ee3p.<\/strong><\/p>\n

L\u1eddi gi\u1ea3i:<\/b><\/p>\n

– \u01afu \u0111i\u1ec3m : x\u00e0 ph\u00f2ng c\u00f3 ch\u1ee9a axit b\u00e9o vi sinh v\u1eadt ph\u00e2n h\u1ee7y do \u0111\u00f3 kh\u00f4ng g\u00e2y \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng. Trong khi \u0111\u00f3 c\u00e1c ch\u1ea5t gi\u1eb7t r\u1eeda t\u1ed5ng h\u1ee3p c\u00f3 th\u1ec3 g\u00e2y \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng.<\/p>\n

– Nh\u01b0\u1ee3c \u0111i\u1ec3m : C\u00e1c mu\u1ed1i panmitat hay stearat c\u1ee7a c\u00e1c kim lo\u1ea1i h\u00f3a tr\u1ecb II c\u1ee7a x\u00e0 ph\u00f2ng th\u01b0\u1eddng kh\u00f3 tan trong n\u01b0\u1edbc, do \u0111\u00f3 x\u00e0 ph\u00f2ng kh\u00f4ng d\u00f9ng \u0111\u1ec3 gi\u1eb7t r\u1eeda \u0111\u01b0\u1ee3c trong n\u01b0\u1edbc c\u1ee9ng.<\/p>\n

B\u00e0i 5 (trang 16 SGK H\u00f3a 12):\u00a0C\u1ea7n bao nhi\u00eau kg ch\u1ea5t b\u00e9o ch\u1ee9a 89% kh\u1ed1i l\u01b0\u1ee3ng tristearin (c\u00f2n 11% t\u1ea1p ch\u1ea5t tr\u01a1 b\u1ecb lo\u1ea1i b\u1ecf trong qu\u00e1 tr\u00ecnh n\u1ea5u x\u00e0 ph\u00f2ng) \u0111\u1ec3 s\u1ea3n xu\u1ea5t \u0111\u01b0\u1ee3c 1 t\u1ea5n x\u00e0 ph\u00f2ng 72 (x\u00e0 ph\u00f2ng ch\u1ee9a 72 % kh\u1ed1i l\u01b0\u1ee3ng natri stearat).<\/strong><\/p>\n

L\u1eddi gi\u1ea3i:<\/b><\/p>\n

Kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a natri stearat l\u00e0 :<\/p>\n

mC17H35COONa<\/sub>\u00a0= 1.72\/100 (t\u1ea5n)<\/p>\n

nC17H35COONa<\/sub>\u00a0= 0,72 \/306 mol.<\/p>\n

PTHH (C17<\/sub>H35<\/sub>COO)3<\/sub>C3<\/sub>H5<\/sub>\u00a0+ 3NaOH \u2192 3C17<\/sub>H35<\/sub>COONa + C3<\/sub>H5<\/sub>(OH)3<\/sub><\/p>\n

n(C17H35COO)3C3H5<\/sub>\u00a0= 0,72 \/ 3 x 306.<\/p>\n

m((C17H35COO)3C3H5)<\/sub>\u00a0= (890.0,72)\/(3.306) = 0,698 (kg)<\/p>\n

Kh\u1ed1i l\u01b0\u01a1ng ch\u1ea5t b\u00e9o l\u00e0 :<\/p>\n

m= 0,698.100\/89 = 0,784 (kg)<\/p>\n

 <\/p>\n

<\/div>\n","protected":false},"excerpt":{"rendered":"

B\u00e0i 1 (trang 15 SGK H\u00f3a 12):\u00a0X\u00e0 ph\u00f2ng l\u00e0 g\u00ec? L\u1eddi gi\u1ea3i: X\u00e0 ph\u00f2ng l\u00e0 h\u1ed7n h\u1ee3p mu\u1ed1i natri ho\u1eb7c mu\u1ed1i kali c\u1ee7a axit b\u00e9o c\u00f3 th\u00eam m\u1ed9t s\u1ed1 ch\u1ea5t ph\u1ee5 gia. B\u00e0i 2 (trang 15 SGK H\u00f3a 12):\u00a0Ghi \u0110 (\u0111\u00fang ) ho\u1eb7c S (sai ) v\u00e0o \u00f4 tr\u1ed1ng b\u00ean c\u1ea1nh c\u00e1c c\u00e2u sau: a) […]<\/p>\n","protected":false},"author":3,"featured_media":24594,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[1305],"tags":[1419,1420],"yoast_head":"\nCh\u01b0\u01a1ng 1 - B\u00e0i 3: Kh\u00e1i ni\u1ec7m v\u1ec1 x\u00e0 ph\u00f2ng v\u00e0 ch\u1ea5t gi\u1eb7t r\u1eeda t\u1ed5ng h\u1ee3p<\/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-1-bai-3-khai-niem-ve-xa-phong-va-chat-giat-rua-tong-hop\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ch\u01b0\u01a1ng 1 - B\u00e0i 3: Kh\u00e1i ni\u1ec7m v\u1ec1 x\u00e0 ph\u00f2ng v\u00e0 ch\u1ea5t gi\u1eb7t r\u1eeda t\u1ed5ng h\u1ee3p\" \/>\n<meta property=\"og:description\" content=\"B\u00e0i 1 (trang 15 SGK H\u00f3a 12):\u00a0X\u00e0 ph\u00f2ng l\u00e0 g\u00ec? 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