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{"id":24696,"date":"2018-03-30T15:09:56","date_gmt":"2018-03-30T08:09:56","guid":{"rendered":"https:\/\/lop12.edu.vn\/?p=24696"},"modified":"2018-03-30T15:09:56","modified_gmt":"2018-03-30T08:09:56","slug":"chuong-9-bai-57-hoa-hoc-va-van-de-xa-hoi","status":"publish","type":"post","link":"https:\/\/lop12.edu.vn\/chuong-9-bai-57-hoa-hoc-va-van-de-xa-hoi\/","title":{"rendered":"Ch\u01b0\u01a1ng 9 – B\u00e0i 57: H\u00f3a h\u1ecdc v\u00e0 v\u1ea5n \u0111\u1ec1 x\u00e3 h\u1ed9i"},"content":{"rendered":"

B\u00e0i 1 (trang 266 sgk H\u00f3a 12 n\u00e2ng cao):\u00a0Lo\u1ea1i thu\u1ed1c n\u00e0o sau \u0111\u00e2y thu\u1ed9c lo\u1ea1i g\u00e2y nghi\u1ec7n cho con ng\u01b0\u1eddi?<\/strong><\/p>\n

A. Penixilin, Amoxilin<\/p>\n

B. Vitamin C, glucoz\u01a1.<\/p>\n

C. Seduxen, moocphin<\/p>\n

D. Thu\u1ed1c c\u1ea3m pamin, Panodol<\/p>\n

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

\u0110\u00e1p \u00e1n C<\/p>\n

B\u00e0i 2 (trang 266 sgk H\u00f3a 12 n\u00e2ng cao):\u00a0C\u00e1ch b\u1ea3o qu\u1ea3n th\u1ef1c ph\u1ea9m (th\u1ecbt, c\u00e1..) b\u1eb1ng c\u00e1ch n\u00e0o sau \u0111\u00e2y \u0111\u01b0\u1ee3c coi l\u00e0 an to\u00e0n?<\/strong><\/p>\n

A. D\u00f9ng fomon, n\u01b0\u1edbc \u0111\u00e1.<\/p>\n

B. D\u00f9ng ph\u00e2n, \u0111\u1ea1m, n\u01b0\u1edbc \u0111\u00e1.<\/p>\n

C. D\u00f9ng n\u01b0\u1edbc \u0111\u00e1, v\u00e0 n\u01b0\u1edbc \u0111\u00e1 kh\u00f4.<\/p>\n

D. D\u00f9ng n\u01b0\u1edbc \u0111\u00e1 kh\u00f4, fornon.<\/p>\n

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

\u0110\u00e1p \u00e1n C<\/p>\n

B\u00e0i 3 (trang 266 sgk H\u00f3a 12 n\u00e2ng cao):<\/b>\u00a0Ph\u00e2n b\u00f3n, thu\u1ed1c tr\u1eeb s\u00e2u, thu\u1ed1c k\u00edch th\u00edch t\u0103ng tr\u01b0\u1edfng…c\u00f3 t\u00e1c d\u1ee5ng gi\u00fap cho c\u00e2y ph\u00e1t tri\u1ec3n t\u1ed1t, t\u0103ng n\u0103ng su\u1ea5t c\u00e2y tr\u1ed3ng nh\u01b0ng l\u1ea1i c\u00f3 t\u00e1c d\u1ee5ng ph\u1ee5 g\u00e2y ra nh\u1eefng b\u1eadnh hi\u1ec3m ngh\u00e8o cho con ng\u01b0\u1eddi. Sau khi b\u00f3n ph\u00e2n \u0111\u1ea1m ho\u1eb7c phun thu\u1ed1c tr\u1eeb s\u00e2u, thu\u1ed1c k\u00edch th\u00edch t\u0103ng tr\u01b0\u1edfng cho m\u1ed9t s\u1ed1 lo\u1ea1i rau, qu\u1ea3, th\u1eddi h\u1ea1n t\u1ed1i thi\u1ec3u \u0111\u1ec3 s\u1eed d\u1ee5ng an to\u00e0n th\u01b0\u1eddng l\u00e0:<\/p>\n

A. 1-2 ng\u00e0y<\/p>\n

B. 2-3 ng\u00e0y<\/p>\n

C. 12-15 ng\u00e0y<\/p>\n

D. 30-35 ng\u00e0y.<\/p>\n

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

\u0110\u00e1p \u00e1n C<\/p>\n

B\u00e0i 4 (trang 266 sgk H\u00f3a 12 n\u00e2ng cao):\u00a0H\u00e3y l\u1ea5y d\u1eabn ch\u1ee9ng ch\u1ee9ng t\u1ecf r\u1eb1ng c\u00f3 th\u1ec3 s\u1ea3n xu\u1ea5t \u0111\u01b0\u1ee3c c\u00e1c ch\u1ea5t h\u00f3a h\u1ecdc c\u00f3 t\u00e1c d\u1ee5ng b\u1ea3o v\u1ec7 v\u00e0 ph\u00e1t tri\u1ec3n c\u00e2y l\u01b0\u01a1ng th\u1ef1c.<\/strong><\/p>\n

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

\u0110\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 l\u01b0\u01a1ng th\u1ef1c, h\u00f3a h\u1ecdc \u0111\u00e3 c\u00f3 nh\u1eefng \u0111\u00f3ng g\u00f3p sau:<\/p>\n

– S\u1ea3n xu\u1ea5t c\u00e1c lo\u1ea1i ph\u00e2n b\u00f3n h\u00f3a h\u1ecdc nh\u01b0 \u0111\u1ea1m, l\u00e2n, kali, ph\u00e2n vi l\u01b0\u1ee3ng…<\/p>\n

– S\u1ea3n xu\u1ea5t thu\u1ed1c b\u1ea3o v\u1ec7 th\u1ef1c v\u1eadt, di\u1ec7t tr\u1eeb c\u1ecf d\u1ea1i, n\u1ea5m b\u1ec7nh, c\u00f4n tr\u00f9ng ph\u00e1 h\u1ea1i m\u00f9a m\u00e0ng.<\/p>\n

– T\u1ed5ng h\u1ee3p c\u00e1c h\u00f3a ch\u1ea5t b\u1ea3o qu\u1ea3n l\u01b0\u01a1ng th\u1ef1c,Th\u1ef1c ph\u1ea9m an to\u00e0n.<\/p>\n

– S\u1ea3n xu\u1ea5t th\u1ef1c ph\u1ea9m nh\u00e2n t\u1ea1o, thay th\u1ebf ngu\u1ed3n nguy\u00ean li\u1ec7u l\u00e0 l\u01b0\u01a1ng th\u1ef1c b\u1eb1ng c\u00e1c ngu\u1ed3n kh\u00e1c nh\u01b0 s\u1ea3n xu\u1ea5t etanol t\u1eeb tinh b\u1ed9t \u0111\u01b0\u1ee3c thay b\u1eb1ng t\u1eeb m\u00f9n c\u01b0a, vv…<\/p>\n

– S\u1ea3n xu\u1ea5t c\u00e1c lo\u1ea1i ph\u1ee5 gia cho th\u1ef1c ph\u1ea9m, nh\u01b0 c\u00e1c ch\u1ea5t t\u1ea1o m\u00e0u, t\u1ea1o m\u00f9i, nh\u01b0ng \u0111\u1ea3m b\u1ea3o v\u1ec7 sinh an to\u00e0n th\u1ef1c ph\u1ea9m.<\/p>\n

B\u00e0i 5 (trang 266 sgk H\u00f3a 12 n\u00e2ng cao):\u00a0H\u00f3a h\u1ecdc \u0111\u00e3 s\u1ea3n xu\u1ea5t ra t\u01a1, s\u1ee3i cho con ng\u01b0\u1eddi. H\u00e3y l\u1ea5y 3 th\u00ed d\u1ee5 s\u1ee3i t\u01a1 t\u1ed5ng h\u1ee3p \u0111\u1ec3 minh h\u1ecda?<\/strong><\/p>\n

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

Ba lo\u1ea1i t\u01a1 t\u1ed5ng h\u1ee3p: t\u01a1 nilon, t\u01a1 caprolactam, t\u01a1 poliacrylat<\/p>\n

B\u00e0i 6 (trang 266 sgk H\u00f3a 12 n\u00e2ng cao):\u00a0Ancol etylic l\u00e0 s\u1ea3n ph\u1ea9m trung gian t\u1eeb \u0111\u00f3 s\u1ea3n xu\u1ea5t \u0111\u01b0\u1ee3c cao su nh\u00e2n t\u1ea1o, t\u01a1 s\u1ee3i t\u1ed5ng h\u1ee3p.<\/strong><\/p>\n

C\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ebf ancol etylic b\u1eb1ng hai c\u00e1ch sau:<\/p>\n

– Cho kh\u00ed etilen (l\u1ea5y t\u1eeb cr\u0103ckinh d\u1ea7u m\u1ecf) h\u1ee3p n\u01b0\u1edbc c\u00f3 x\u00fac t\u00e1c.<\/p>\n

– Cho l\u00ean men c\u00e1c nguy\u00ean li\u1ec7u ch\u1ee9a tinh b\u1ed9t.<\/p>\n

a. H\u00e3y vi\u1ebft c\u00e1c ph\u01b0\u01a1ng tr\u00ecnh ph\u1ea3n \u1ee9ng t\u01b0\u01a1ng \u1ee9ng v\u1edbi hai ph\u01b0\u01a1ng ph\u00e1p tr\u00ean.<\/p>\n

b. H\u00e3y t\u00ednh l\u01b0\u1ee3ng ng\u0169 c\u1ed1c ch\u1ee9a 65% tinh b\u1ed9t ho\u1eb7c th\u1ec3 t\u00edch kh\u00ed cr\u0103ckinh d\u1ea7u m\u1ecf ch\u1ee9a 60% kh\u00ed etilen c\u1ea7n thi\u1ebft \u0111\u1ec3 s\u1ea3n xu\u1ea5t \u0111\u01b0\u1ee3c 23 t\u1ea5n ancol etylic. Bi\u1ebft r\u1eb1ng hao h\u1ee5t trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t l\u00e0 25%.<\/p>\n

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

a) C\u00e1c ph\u01b0\u01a1ng tr\u00ecnh h\u00f3a h\u1ecdc c\u1ee7a ph\u1ea3n \u1ee9ng:<\/p>\n

C2<\/sub>H4<\/sub>\u00a0+ H2<\/sub>O \u2192 C2<\/sub>H5OH<\/p>\n

(C6<\/sub>H10O5)n<\/sub>\u00a0+ nH2<\/sub>O \u2192 nC6<\/sub>H12<\/sub>O6<\/sub><\/p>\n

C6<\/sub>H12<\/sub>O6<\/sub>\u00a0\u2192 2C2<\/sub>H5OH + 2CO2<\/sub><\/p>\n

b)T\u1eeb tinh b\u1ed9t<\/p>\n

(C6<\/sub>H10O5)n<\/sub>\u00a0\u2192 nC6<\/sub>H12<\/sub>O6<\/sub>\u00a0\u2192 2nC2<\/sub>H5OH<\/p>\n

Trong ng\u0169 c\u1ed1c c\u00f3 65% tinh b\u1ed9t n\u00ean kh\u1ed1i l\u01b0\u1ee3ng ng\u0169 c\u1ed1c c\u1ea7n l\u1ea5y \u0111\u1ec3 s\u1ea3n xu\u1ea5t ra 2,3 t\u1ea5n etanol v\u1edbi s\u1ef1 hao h\u1ee5t 25% (t\u1ee9c l\u00e0 v\u1edbi hi\u1ec7u su\u1ea5t 75%) l\u00e0 :<\/p>\n

4,05 x (100 : 65) x (100 : 75) = 8,308 t\u1ea5n<\/p>\n

C\u1ee9 1 mol (22,4 l\u00edt) \u2192 46 gam = 46.10-6<\/sup>\u00a0t\u1ea5n<\/p>\n

Kh\u00ed Crackinh d\u1ea7u m\u1ecf c\u00f3 60% C2<\/sub>H4<\/sub>\u00a0v\u00e0 hi\u1ec7u su\u1ea5t l\u00e0 75% => Th\u1ec3 t\u00edch kh\u00ed c\u1ea7n l\u1ea5y l\u00e0 : 1120000 x (100 : 60) x ( 100 : 75) = 2488,9 x 103 l\u00edt = 2488,9 m3<\/sup><\/p>\n

B\u00e0i 7 (trang 266 sgk H\u00f3a 12 n\u00e2ng cao):\u00a0C\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ebf thu\u1ed1c di\u1ec7t n\u1ea5m dung d\u1ecbch 5% CuSO4<\/sub>, theo s\u01a1 \u0111\u1ed3 sau:<\/strong><\/p>\n

CuS \u2192 CuO \u2192 CuSO4<\/sub><\/p>\n

a. H\u00e3y vi\u1ebft ph\u01b0\u01a1ng tr\u00ecnh h\u00f3a h\u1ecdc c\u1ee7a c\u00e1c ph\u1ea3r \u1ee9ng x\u1ea3y ra?<\/p>\n

b. T\u00ednh th\u1ec3 t\u00edch CuSO4<\/sub>\u00a05% thu \u0111\u01b0\u1ee3c t\u1eeb 0,15 t\u1ea5n nguy\u00ean li\u1ec7u ch\u1ee9a 80% CuS. Hi\u1ec7u su\u1ea5t c\u1ee7a qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t l\u00e0 80%.<\/p>\n

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

CuS \u2192 CuO \u2192 CuSO4<\/sub><\/p>\n

a) C\u00e1c ph\u01b0\u01a1ng tr\u00ecnh ph\u1ea3n \u1ee9ng<\/p>\n

2CuS + 3O2<\/sub>\u00a0\u2192 2CuO + 2SO2<\/sub><\/p>\n

CuO + 2H2<\/sub>SO4<\/sub>\u00a0\u2192 CuSO4<\/sub>\u00a0+ H2<\/sub>O<\/p>\n

b)Kh\u1ed1i l\u01b0\u1ee3ng CuS nguy\u00ean ch\u1ea5t l\u00e0 : 0,15 x (80 : 100) = 0,12 t\u1ea5n<\/p>\n

CuS \u2192 CuSO4<\/sub><\/p>\n

C\u1ee9 96 gam \u2192 160 gam<\/p>\n

V\u1eady 0,2 t\u1ea5n \u2192 0,2 t\u1ea5n<\/p>\n

Do H = 80% n\u00ean kh\u1ed1i l\u01b0\u1ee3ng CuSO4<\/sub>\u00a0th\u1ef1c thu \u0111\u01b0\u1ee3c 0,2.(80 : 100) = 0,16 t\u1ea5n<\/p>\n

=> Kh\u1ed1i l\u01b0\u1ee3ng dung d\u1ecbch CuSO4<\/sub>\u00a05% l\u00e0 :<\/p>\n

C% = (mCuSO4<\/sub>\u00a0x 100 : mdd<\/sub>) = (0,16 x 100) : 5 = 3,2 t\u1ea5n<\/p>\n

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

B\u00e0i 1 (trang 266 sgk H\u00f3a 12 n\u00e2ng cao):\u00a0Lo\u1ea1i thu\u1ed1c n\u00e0o sau \u0111\u00e2y thu\u1ed9c lo\u1ea1i g\u00e2y nghi\u1ec7n cho con ng\u01b0\u1eddi? A. Penixilin, Amoxilin B. Vitamin C, glucoz\u01a1. C. Seduxen, moocphin D. Thu\u1ed1c c\u1ea3m pamin, Panodol L\u1eddi gi\u1ea3i: \u0110\u00e1p \u00e1n C B\u00e0i 2 (trang 266 sgk H\u00f3a 12 n\u00e2ng cao):\u00a0C\u00e1ch b\u1ea3o qu\u1ea3n th\u1ef1c ph\u1ea9m (th\u1ecbt, c\u00e1..) 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A. Penixilin, Amoxilin B. Vitamin C, glucoz\u01a1. C. Seduxen, moocphin D. Thu\u1ed1c c\u1ea3m pamin, Panodol L\u1eddi gi\u1ea3i: \u0110\u00e1p \u00e1n C B\u00e0i 2 (trang 266 sgk H\u00f3a 12 n\u00e2ng cao):\u00a0C\u00e1ch b\u1ea3o qu\u1ea3n th\u1ef1c ph\u1ea9m (th\u1ecbt, c\u00e1..) 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