B\u00e0i 2 (trang 151 SGK H\u00f3a 12):\u00a0N\u00eau c\u00e1c ph\u01b0\u01a1ng ph\u00e1p luy\u1ec7n th\u00e9p v\u00e0 cho bi\u1ebft \u01b0u \u0111i\u1ec3m, nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a m\u1ed7i ph\u01b0\u01a1ng ph\u00e1p.<\/strong><\/p>\nL\u1eddi gi\u1ea3i:<\/b><\/p>\n
C\u00e1c ph\u01b0\u01a1ng ph\u00e1p luy\u1ec7n th\u00e9p:<\/p>\n
– Ph\u01b0\u01a1ng ph\u00e1p Bet-x\u01a1-me:<\/p>\n
+ Ph\u01b0\u01a1ng ph\u00e1p Bet-x\u01a1-me luy\u1ec7n th\u00e9p trong l\u00f2 th\u1ed5i c\u00f3 h\u00ecnh qu\u1ea3 l\u00ea, v\u1ecf ngo\u00e0i b\u1eb1ng th\u00e9p, b\u00ean trong l\u00e0 l\u00e1t g\u1ea1ch ch\u1ecbu l\u1eeda \u0111i -nat. Lu\u1ed3ng kh\u00f4ng kh\u00ed m\u1ea1nh th\u1ed5i v\u00e0o gang l\u1ecfng, \u0111\u1ed1t ch\u00e1y c\u00e1c t\u1ea1p ch\u1ea5t trong gang t\u1ea1o th\u00e0nh th\u00e9p trong th\u1eddi gian ng\u1eafn.<\/p>\n
+ Nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p Bet-x\u01a1-me l\u00e0 kh\u00f4ng luy\u1ec7n \u0111\u01b0\u1ee3c th\u00e9p t\u1eeb gang ch\u1ee9a nhi\u1ec1u photpho v\u00e0 kh\u00f4ng luy\u1ec7n \u0111\u01b0\u1ee3c th\u00e9p c\u00f3 th\u00e0nh ph\u1ea7n theo \u00fd mu\u1ed1n.<\/p>\n
– Ph\u01b0\u01a1ng ph\u00e1p Mac-tanh:<\/p>\n
+ Qu\u00e1 tr\u00ecnh luy\u1ec7n th\u00e9p k\u00e9o d\u00e0i 6 – 8 gi\u1edd n\u00ean ng\u01b0\u1eddi ta c\u00f3 th\u1ec3 ph\u00e2n t\u00edch \u0111\u01b0\u1ee3c s\u1ea3n ph\u1ea9m v\u00e0 cho th\u00eam nh\u1eefng ch\u1ea5t c\u1ea7n thi\u1ebft \u0111\u1ec3 ch\u1ebf \u0111\u01b0\u1ee3c c\u00e1c lo\u1ea1i th\u00e9p c\u00f3 th\u00e0nh ph\u1ea7n mong mu\u1ed1n.<\/p>\n
– Ph\u01b0\u01a1ng ph\u00e1p l\u00f2 \u0111i\u1ec7n:<\/p>\n
+ Nhi\u1ec7t l\u01b0\u1ee3ng sinh ra trong l\u00f2 h\u1ed3 quang \u0111i\u1ec7n gi\u1eefa c\u00e1c \u0111i\u1ec7n c\u1ef1c b\u1eb1ng than ch\u00ec v\u00e0 c\u1ee7a gang l\u1ecfng t\u1ea1o ra nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n v\u00e0 d\u1ec5 \u0111i\u1ec1u ch\u1ec9nh h\u01a1n so v\u1edbi c\u00e1c lo\u1ea1i l\u00f2 tr\u00ean.<\/p>\n
+ Ph\u01b0\u01a1ng ph\u00e1p l\u00f2 \u0111i\u1ec7n c\u00f3 \u01b0u \u0111i\u1ec3m l\u00e0 luy\u1ec7n \u0111\u01b0\u1ee3c nh\u1eefng lo\u1ea1i th\u00e9p \u0111\u1eb7c bi\u1ec7t m\u00e0 th\u00e0nh ph\u1ea7n c\u00f3 nh\u1eefng kim lo\u1ea1i kh\u00f3 n\u00f3ng ch\u1ea3y nh\u01b0 vonfam, molip\u0111en, crom, … v\u00e0 kh\u00f4ng ch\u1ee9a nh\u1eefng t\u1ea1p ch\u1ea5t c\u00f3 h\u1ea1i nh\u01b0 l\u01b0u hu\u1ef3nh, photpho.<\/p>\n
+ Nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a l\u00f2 \u0111i\u1ec7n l\u00e0 dung t\u00edch nh\u1ecf.<\/p>\n
B\u00e0i 3 (trang 151 SGK H\u00f3a 12):\u00a0M\u1ed9t lo\u1ea1i qu\u1eb7ng s\u1eaft trong t\u1ef1 nhi\u00ean \u0111\u00e3 \u0111\u01b0\u1ee3c lo\u1ea1i b\u1ecf t\u1ea1p ch\u1ea5t. H\u00f2a tan qu\u1eb7ng n\u00e0y trong HNO3<\/sub>\u00a0th\u1ea5y c\u00f3 kh\u00ed m\u00e0u n\u00e2u bay ra, dung d\u1ecbch thu \u0111\u01b0\u1ee3c cho t\u00e1c d\u1ee5ng v\u1edbi Ba th\u1ea5y c\u00f3 k\u1ebft t\u1ee7a tr\u1eafng kh\u00f4ng tan trong axit m\u1ea1nh. Lo\u1ea1i qu\u1eb7ng \u0111\u00f3 l\u00e0 :<\/strong><\/p>\nA. xiderit.<\/p>\n
B. hemantit.<\/p>\n
C. manhetit.<\/p>\n
D. pirit s\u1eaft.<\/p>\n
L\u1eddi gi\u1ea3i:<\/b><\/p>\n
\u0110\u00e1p \u00e1n D.<\/p>\n
B\u00e0i 4 (trang 151 SGK H\u00f3a 12):\u00a0\u0110\u1ec3 kh\u1eed ho\u00e0n to\u00e0n 17,6 gam h\u1ed7n h\u1ee3p g\u1ed3m Fe, FeO, Fe3<\/sub>O4<\/sub>, Fe2<\/sub>O3<\/sub>\u00a0\u0111\u1ebfn Fe th\u00ec c\u1ea7n \u0111\u1ee7 2,24 l\u00edt CO (\u0111ktc). Kh\u1ed1i l\u01b0\u1ee3ng s\u1eaft thu \u0111\u01b0\u1ee3c l\u00e0 :<\/strong><\/p>\nA. 15g<\/p>\n
B. 16g<\/p>\n
C. 17g<\/p>\n
D. 18g<\/p>\n
L\u1eddi gi\u1ea3i:<\/b><\/p>\n
\u0110\u00e1p \u00e1n B.<\/p>\n
G\u1ecdi x l\u00e0 s\u1ed1 mol c\u1ee7a FeO, y l\u00e0 s\u1ed1 mol Fe3<\/sub>O4<\/sub>, z l\u00e0 s\u1ed1 mol Fe2<\/sub>O3<\/sub>\u00a0, t l\u00e0 s\u1ed1 mol Fe<\/p>\nTa c\u00f3 17,6 = 72x + 232y + 160z + 56t (1)<\/p>\n
![\"\"](\"https:\/\/lop12.edu.vn\/wp-content\/uploads\/2018\/03\/bai-4-trang-151-sgk-hoa-12.png\")
<\/p>\n
Ta c\u00f3 x + 4y + 3z = 0,1<\/p>\n
Kh\u1ed1i l\u01b0\u1ee3ng Fe l\u00e0 m = 56(x + 3y + 2z + t)<\/p>\n
T\u1eeb (1) ta c\u00f3 17,6 = 56(x + 3y + 2z + t) + 16(x + 4y + 3z)<\/p>\n
17,6 = m + 16.0,1<\/p>\n
=> m = 16<\/p>\n
B\u00e0i 5 (trang 151 SGK H\u00f3a 12):\u00a0Nung m\u1ed9t m\u1eabu th\u00e9p th\u01b0\u1eddng c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng 10 g trong O2<\/sub>\u00a0d\u01b0 thu \u0111\u01b0\u1ee3c 0,1568 l\u00edt kh\u00ed CO2<\/sub>\u00a0(\u0111ktc).Th\u00e0nh ph\u1ea7n % theo kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a cacbon trong m\u1eabu th\u00e9p \u0111\u00f3 l\u00e0 bao nhi\u00eau?<\/strong><\/p>\nA. 0,82%.<\/p>\n
B. 0,84%.<\/p>\n
C. 0,85%.<\/p>\n
D. 0,86%.<\/p>\n
L\u1eddi gi\u1ea3i:<\/b><\/p>\n
\u0110\u00e1p \u00e1n B.<\/p>\n
nC<\/sub>\u00a0= nCO2<\/sub>\u00a0= 0,1568 \/ 22,4 = 0,007 mol.<\/p>\nmC<\/sub>\u00a0= 12.0,007 = 0,084 (g)<\/p>\n%mC<\/sub>\u00a0= 0,084 \/ 10 x 100 = 0,84.<\/p>\nB\u00e0i 6 (trang 151 SGK H\u00f3a 12):\u00a0C\u1ea7n bao nhi\u00eau t\u1ea5n qu\u1eb7ng manhetit ch\u1ee9a 80% Fe3<\/sub>O4<\/sub>\u0111\u1ec3 c\u00f3 th\u1ec3 s\u1ea3n xu\u1ea5t \u0111\u01b0\u1ee3c 800 t\u1ea5n gang c\u00f3 h\u00e0m l\u01b0\u1ee3ng s\u1eaft l\u00e0 95%. Bi\u1ebft r\u1eb1ng trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t, l\u01b0\u1ee3ng s\u1eaft b\u1ecb hao h\u1ee5t l\u00e0 1%.<\/strong><\/p>\nL\u1eddi gi\u1ea3i:<\/b><\/p>\n
Kh\u1ed1i l\u01b0\u1ee3ng s\u1eaft c\u00f3 trong t\u1ea5n gang ch\u1ee9a 95% s\u1eaft l\u00e0 : 800 x 95 \/ 100 = 760 (t\u1ea5n)<\/p>\n
Kh\u1ed1i l\u01b0\u1ee3ng s\u1eaft th\u1ef1c t\u1ebf c\u1ea7n ph\u1ea3i c\u00f3 l\u00e0 : 760 x 100 \/ 99 = 767,68 (t\u1ea5n)<\/p>\n
C\u00f3 Fe3<\/sub>O4<\/sub>\u00a0-> 3Fe<\/p>\n232 t\u1ea5n Fe3<\/sub>O4<\/sub>\u00a0t\u1ea1o ra 3 x 56 = 168 t\u1ea5n Fe.<\/p>\nMu\u1ed1n c\u00f3 767,68 t\u1ea5n s\u1eaft, c\u1ea7n 767,68 x 232 \/ 168 = 1060,13 t\u1ea5n Fe3<\/sub>O4<\/sub><\/p>\nKh\u1ed1i l\u01b0\u1ee3ng qu\u1eb7ng manhetit c\u1ea7n d\u00f9ng l\u00e0: 1060,13 x 100 \/ 80 = 1325,163 (t\u1ea5n)<\/p>\n
<\/p>\n
<\/div>\n
<\/div>\n","protected":false},"excerpt":{"rendered":"
B\u00e0i 1 (trang 151 SGK H\u00f3a 12):\u00a0N\u00eau nh\u1eefng ph\u1ea3n \u1ee9ng ch\u00ednh x\u1ea3y ra trong l\u00f2 cao. L\u1eddi gi\u1ea3i: C\u00e1c ph\u1ea3n \u1ee9ng x\u1ea3y ra trong l\u00f2 cao: 3Fe2O3\u00a0+ CO \u2192 2Fe3O4\u00a0+ CO2. Fe3O4\u00a0+ CO \u2192 3FeO + CO2. FeO + CO \u2192 Fe + CO2. CaCO3\u00a0\u2192 CaO + CO2. CaO + SiO2\u00a0\u2192 CaSiO3. C + CO2\u00a0\u2192 […]<\/p>\n","protected":false},"author":3,"featured_media":24311,"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":"\n
Ch\u01b0\u01a1ng 7 - B\u00e0i 33: H\u1ee3p kim c\u1ee7a s\u1eaft<\/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-7-bai-33-hop-kim-cua-sat\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ch\u01b0\u01a1ng 7 - B\u00e0i 33: H\u1ee3p kim c\u1ee7a s\u1eaft\" \/>\n<meta property=\"og:description\" content=\"B\u00e0i 1 (trang 151 SGK H\u00f3a 12):\u00a0N\u00eau nh\u1eefng ph\u1ea3n \u1ee9ng ch\u00ednh x\u1ea3y ra trong l\u00f2 cao. L\u1eddi gi\u1ea3i: C\u00e1c ph\u1ea3n \u1ee9ng x\u1ea3y ra trong l\u00f2 cao: 3Fe2O3\u00a0+ CO \u2192 2Fe3O4\u00a0+ CO2. Fe3O4\u00a0+ CO \u2192 3FeO + CO2. FeO + CO \u2192 Fe + CO2. CaCO3\u00a0\u2192 CaO + CO2. CaO + SiO2\u00a0\u2192 CaSiO3. C + CO2\u00a0\u2192 […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/lop12.edu.vn\/chuong-7-bai-33-hop-kim-cua-sat\/\" \/>\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=\"2018-03-28T15:54:27+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/lop12.edu.vn\/wp-content\/uploads\/2018\/03\/bai-4-trang-151-sgk-hoa-12.png\" \/>\n\t<meta property=\"og:image:width\" content=\"305\" \/>\n\t<meta property=\"og:image:height\" content=\"242\" \/>\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-7-bai-33-hop-kim-cua-sat\/\",\"url\":\"https:\/\/lop12.edu.vn\/chuong-7-bai-33-hop-kim-cua-sat\/\",\"name\":\"Ch\u01b0\u01a1ng 7 - B\u00e0i 33: H\u1ee3p kim c\u1ee7a s\u1eaft\",\"isPartOf\":{\"@id\":\"https:\/\/lop12.edu.vn\/#website\"},\"datePublished\":\"2018-03-28T15:54:27+00:00\",\"dateModified\":\"2018-03-28T15:54:27+00:00\",\"author\":{\"@id\":\"https:\/\/lop12.edu.vn\/#\/schema\/person\/2da855e5d06b553ac0065157cc261a45\"},\"breadcrumb\":{\"@id\":\"https:\/\/lop12.edu.vn\/chuong-7-bai-33-hop-kim-cua-sat\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/lop12.edu.vn\/chuong-7-bai-33-hop-kim-cua-sat\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/lop12.edu.vn\/chuong-7-bai-33-hop-kim-cua-sat\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/lop12.edu.vn\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Ch\u01b0\u01a1ng 7 – B\u00e0i 33: H\u1ee3p kim c\u1ee7a s\u1eaft\"}]},{\"@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 7 - B\u00e0i 33: H\u1ee3p kim c\u1ee7a s\u1eaft","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-7-bai-33-hop-kim-cua-sat\/","og_locale":"en_US","og_type":"article","og_title":"Ch\u01b0\u01a1ng 7 - B\u00e0i 33: H\u1ee3p kim c\u1ee7a s\u1eaft","og_description":"B\u00e0i 1 (trang 151 SGK H\u00f3a 12):\u00a0N\u00eau nh\u1eefng ph\u1ea3n \u1ee9ng ch\u00ednh x\u1ea3y ra trong l\u00f2 cao. L\u1eddi gi\u1ea3i: C\u00e1c ph\u1ea3n \u1ee9ng x\u1ea3y ra trong l\u00f2 cao: 3Fe2O3\u00a0+ CO \u2192 2Fe3O4\u00a0+ CO2. Fe3O4\u00a0+ CO \u2192 3FeO + CO2. FeO + CO \u2192 Fe + CO2. CaCO3\u00a0\u2192 CaO + CO2. CaO + SiO2\u00a0\u2192 CaSiO3. 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