2<\/sub>\u00a0\u0111\u01b0\u1ee3c kh\u00f4ng ? T\u1ea1i sao ?<\/strong><\/p>\nL\u1eddi gi\u1ea3i:<\/b><\/p>\n
Kh\u00f4ng th\u1ec3 ph\u00e2n bi\u1ec7t \u0111\u01b0\u1ee3c v\u00ec c\u1ea3 hai \u0111\u1ec1u c\u00f3 ph\u1ea3n \u1ee9ng t\u1ea1o k\u1ebft t\u1ee7a v\u1edbi Ca(OH)2<\/sub>\u00a0l\u00e0m dung d\u1ecbch v\u1ea9n \u0111\u1ee5c<\/p>\nCO2<\/sub>\u00a0+ Ca(OH)2<\/sub>\u00a0\u2192 CaCO3<\/sub>\u00a0\u2193 + H2<\/sub>O<\/p>\nSO2<\/sub>\u00a0+ Ca(OH)2<\/sub>\u00a0\u2192 CaSO3<\/sub>\u00a0\u2193 + H2<\/sub>O<\/p>\nB\u00e0i 2 (trang 177 SGK H\u00f3a 12):\u00a0C\u00f3 2 b\u00ecnh ri\u00eang bi\u1ec7t \u0111\u1ef1ng c\u00e1c kh\u00ed CO2<\/sub>\u00a0v\u00e0 SO2<\/sub>. H\u00e3y tr\u00ecnh b\u00e0y c\u00e1ch nh\u1eadn bi\u1ebft t\u1eebng kh\u00ed. Vi\u1ebft c\u00e1c ph\u01b0\u01a1ng tr\u00ecnh h\u00f3a h\u1ecdc.<\/strong><\/p>\nL\u1eddi gi\u1ea3i:<\/b><\/p>\n
D\u1eabn hai kh\u00ed l\u1ea7n l\u01b0\u1ee3t l\u1ed9i qua dung d\u1ecbch n\u01b0\u1edbc brom n\u1ebfu kh\u00ed n\u00e0o l\u00e0m m\u1ea5t m\u00e0u dung d\u1ecbch n\u01b0\u1edbc brom l\u00e0 SO2<\/sub>. C\u00f2n kh\u00ed kia d\u1eabn v\u00e0o b\u00ecnh \u0111\u1ef1ng n\u01b0\u1edbc v\u00f4i trong n\u1ebfu th\u1ea5y k\u1ebft t\u1ee7a l\u00e0m n\u01b0\u1edbc v\u00f4i trong v\u1ea9n \u0111\u1ee5c l\u00e0 CO2<\/sub><\/p>\nSO2<\/sub>\u00a0+ Br2<\/sub>\u00a0+ 2H2<\/sub>O \u2192 2HBr + H2<\/sub>SO4<\/sub><\/p>\nCO2<\/sub>\u00a0+ Ca(OH)2<\/sub>\u00a0\u2192 CaCO3<\/sub>\u00a0\u2193 + H2<\/sub>O<\/p>\nB\u00e0i 3 (trang 177 SGK H\u00f3a 12):\u00a0C\u00f3 c\u00e1c l\u1ecd h\u00f3a ch\u1ea5t kh\u00f4ng nh\u00e3n, m\u1ed7i l\u1ecd \u0111\u1ef1ng m\u1ed9t trong c\u00e1c dung d\u1ecbch kh\u00f4ng m\u00e0u sau : Na2<\/sub>SO4<\/sub>, Na2<\/sub>S, Na2<\/sub>CO3<\/sub>\u00a0, Na3<\/sub>PO4<\/sub>, Na2<\/sub>SO3<\/sub>. Ch\u1ec9 d\u00f9ng thu\u1ed1c th\u1eed l\u00e0 dung d\u1ecbch H2<\/sub>SO4<\/sub>\u00a0lo\u00e3ng nh\u1ecf tr\u1ef1c ti\u1ebfp v\u00e0o t\u1eebng dung d\u1ecbch th\u00ec c\u00f3 th\u1ec3 nh\u1eadn bi\u1ebft \u0111\u01b0\u1ee3c nh\u1eefng dung d\u1ecbch n\u00e0o ?<\/strong><\/p>\nA. Na2<\/sub>CO3<\/sub>, Na2<\/sub>S, Na2<\/sub>SO3<\/sub><\/p>\nB. Na2<\/sub>CO3<\/sub>, Na2<\/sub>S<\/p>\nC. Na2<\/sub>S, Na2<\/sub>CO3<\/sub>, Na3<\/sub>PO4<\/sub><\/p>\nD. Na2<\/sub>SO4<\/sub>, Na2<\/sub>S, Na2<\/sub>CO3<\/sub>\u00a0, Na3<\/sub>PO4<\/sub>, Na2<\/sub>SO3<\/sub><\/p>\nL\u1eddi gi\u1ea3i:<\/b><\/p>\n
Cho dd H2SO4 l\u1ea7n l\u01b0\u1ee3t v\u00e0o 5 l\u1ecd \u0111\u1ef1ng 5 dd:<\/p>\n
\u2022 L\u1ecd n\u00e0o c\u00f3 kh\u00ed kh\u00f4ng m\u00e0u kh\u00f4ng m\u00f9i l\u00e0 Na2<\/sub>CO3<\/sub><\/p>\n\u2022 L\u1ecd n\u00e0o c\u00f3 kh\u00ed m\u00f9i tr\u1ee9ng th\u1ed1i l\u00e0 Na2<\/sub>S.<\/p>\n\u2022 L\u1ecd n\u00e0o c\u00f3 kh\u00ed kh\u00f4ng m\u00e0u m\u00f9i x\u1ed1c l\u00e0 Na2<\/sub>CO3<\/sub><\/p>\n\u2022 2 l\u1ecd c\u00f2n l\u1ea1i kh\u00f4ng hi\u1ec7n t\u01b0\u1ee3ng<\/p>\n
\u0110\u00e1p \u00e1n A.<\/p>\n
<\/p>\n
<\/p>\n
\n
<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
B\u00e0i 1 (trang 177 SGK H\u00f3a 12):\u00a0C\u00f3 th\u1ec3 d\u00f9ng n\u01b0\u1edbc v\u00f4i trong \u0111\u1ec3 ph\u00e2n bi\u1ec7t hai kh\u00ed CO2v\u00e0 SO2\u00a0\u0111\u01b0\u1ee3c kh\u00f4ng ? T\u1ea1i sao ? L\u1eddi gi\u1ea3i: Kh\u00f4ng th\u1ec3 ph\u00e2n bi\u1ec7t \u0111\u01b0\u1ee3c v\u00ec c\u1ea3 hai \u0111\u1ec1u c\u00f3 ph\u1ea3n \u1ee9ng t\u1ea1o k\u1ebft t\u1ee7a v\u1edbi Ca(OH)2\u00a0l\u00e0m dung d\u1ecbch v\u1ea9n \u0111\u1ee5c CO2\u00a0+ Ca(OH)2\u00a0\u2192 CaCO3\u00a0\u2193 + H2O SO2\u00a0+ Ca(OH)2\u00a0\u2192 CaSO3\u00a0\u2193 […]<\/p>\n","protected":false},"author":3,"featured_media":0,"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 8 - B\u00e0i 41: Nh\u1eadn bi\u1ebft m\u1ed9t s\u1ed1 ch\u1ea5t kh\u00ed<\/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-8-bai-41-nhan-biet-mot-so-chat-khi\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ch\u01b0\u01a1ng 8 - B\u00e0i 41: Nh\u1eadn bi\u1ebft m\u1ed9t s\u1ed1 ch\u1ea5t kh\u00ed\" \/>\n<meta property=\"og:description\" content=\"B\u00e0i 1 (trang 177 SGK H\u00f3a 12):\u00a0C\u00f3 th\u1ec3 d\u00f9ng n\u01b0\u1edbc v\u00f4i trong \u0111\u1ec3 ph\u00e2n bi\u1ec7t hai kh\u00ed CO2v\u00e0 SO2\u00a0\u0111\u01b0\u1ee3c kh\u00f4ng ? T\u1ea1i sao ? L\u1eddi gi\u1ea3i: Kh\u00f4ng th\u1ec3 ph\u00e2n bi\u1ec7t \u0111\u01b0\u1ee3c v\u00ec c\u1ea3 hai \u0111\u1ec1u c\u00f3 ph\u1ea3n \u1ee9ng t\u1ea1o k\u1ebft t\u1ee7a v\u1edbi Ca(OH)2\u00a0l\u00e0m dung d\u1ecbch v\u1ea9n \u0111\u1ee5c CO2\u00a0+ Ca(OH)2\u00a0\u2192 CaCO3\u00a0\u2193 + H2O SO2\u00a0+ Ca(OH)2\u00a0\u2192 CaSO3\u00a0\u2193 […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/lop12.edu.vn\/chuong-8-bai-41-nhan-biet-mot-so-chat-khi\/\" \/>\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=\"2018-03-28T03:26:24+00:00\" \/>\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=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/lop12.edu.vn\/chuong-8-bai-41-nhan-biet-mot-so-chat-khi\/\",\"url\":\"https:\/\/lop12.edu.vn\/chuong-8-bai-41-nhan-biet-mot-so-chat-khi\/\",\"name\":\"Ch\u01b0\u01a1ng 8 - B\u00e0i 41: Nh\u1eadn bi\u1ebft m\u1ed9t s\u1ed1 ch\u1ea5t kh\u00ed\",\"isPartOf\":{\"@id\":\"https:\/\/lop12.edu.vn\/#website\"},\"datePublished\":\"2018-03-28T03:26:24+00:00\",\"dateModified\":\"2018-03-28T03:26:24+00:00\",\"author\":{\"@id\":\"https:\/\/lop12.edu.vn\/#\/schema\/person\/2da855e5d06b553ac0065157cc261a45\"},\"breadcrumb\":{\"@id\":\"https:\/\/lop12.edu.vn\/chuong-8-bai-41-nhan-biet-mot-so-chat-khi\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/lop12.edu.vn\/chuong-8-bai-41-nhan-biet-mot-so-chat-khi\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/lop12.edu.vn\/chuong-8-bai-41-nhan-biet-mot-so-chat-khi\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/lop12.edu.vn\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Ch\u01b0\u01a1ng 8 – B\u00e0i 41: Nh\u1eadn bi\u1ebft m\u1ed9t s\u1ed1 ch\u1ea5t kh\u00ed\"}]},{\"@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 8 - B\u00e0i 41: Nh\u1eadn bi\u1ebft m\u1ed9t s\u1ed1 ch\u1ea5t kh\u00ed","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-8-bai-41-nhan-biet-mot-so-chat-khi\/","og_locale":"en_US","og_type":"article","og_title":"Ch\u01b0\u01a1ng 8 - B\u00e0i 41: Nh\u1eadn bi\u1ebft m\u1ed9t s\u1ed1 ch\u1ea5t kh\u00ed","og_description":"B\u00e0i 1 (trang 177 SGK H\u00f3a 12):\u00a0C\u00f3 th\u1ec3 d\u00f9ng n\u01b0\u1edbc v\u00f4i trong \u0111\u1ec3 ph\u00e2n bi\u1ec7t hai kh\u00ed CO2v\u00e0 SO2\u00a0\u0111\u01b0\u1ee3c kh\u00f4ng ? T\u1ea1i sao ? L\u1eddi gi\u1ea3i: Kh\u00f4ng th\u1ec3 ph\u00e2n bi\u1ec7t \u0111\u01b0\u1ee3c v\u00ec c\u1ea3 hai \u0111\u1ec1u c\u00f3 ph\u1ea3n \u1ee9ng t\u1ea1o k\u1ebft t\u1ee7a v\u1edbi Ca(OH)2\u00a0l\u00e0m dung d\u1ecbch v\u1ea9n \u0111\u1ee5c CO2\u00a0+ Ca(OH)2\u00a0\u2192 CaCO3\u00a0\u2193 + H2O SO2\u00a0+ Ca(OH)2\u00a0\u2192 CaSO3\u00a0\u2193 […]","og_url":"https:\/\/lop12.edu.vn\/chuong-8-bai-41-nhan-biet-mot-so-chat-khi\/","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":"2018-03-28T03:26:24+00:00","author":"H\u00e0 Trang","twitter_card":"summary_large_image","twitter_misc":{"Written by":"H\u00e0 Trang","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/lop12.edu.vn\/chuong-8-bai-41-nhan-biet-mot-so-chat-khi\/","url":"https:\/\/lop12.edu.vn\/chuong-8-bai-41-nhan-biet-mot-so-chat-khi\/","name":"Ch\u01b0\u01a1ng 8 - B\u00e0i 41: Nh\u1eadn bi\u1ebft m\u1ed9t s\u1ed1 ch\u1ea5t kh\u00ed","isPartOf":{"@id":"https:\/\/lop12.edu.vn\/#website"},"datePublished":"2018-03-28T03:26:24+00:00","dateModified":"2018-03-28T03:26:24+00:00","author":{"@id":"https:\/\/lop12.edu.vn\/#\/schema\/person\/2da855e5d06b553ac0065157cc261a45"},"breadcrumb":{"@id":"https:\/\/lop12.edu.vn\/chuong-8-bai-41-nhan-biet-mot-so-chat-khi\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/lop12.edu.vn\/chuong-8-bai-41-nhan-biet-mot-so-chat-khi\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/lop12.edu.vn\/chuong-8-bai-41-nhan-biet-mot-so-chat-khi\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/lop12.edu.vn\/"},{"@type":"ListItem","position":2,"name":"Ch\u01b0\u01a1ng 8 – B\u00e0i 41: Nh\u1eadn bi\u1ebft m\u1ed9t s\u1ed1 ch\u1ea5t kh\u00ed"}]},{"@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\/24160"}],"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=24160"}],"version-history":[{"count":2,"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/posts\/24160\/revisions"}],"predecessor-version":[{"id":24162,"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/posts\/24160\/revisions\/24162"}],"wp:attachment":[{"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/media?parent=24160"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/categories?post=24160"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/tags?post=24160"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}