{"segment":[{"time":24,"part":[{"title":"Ch\u1ecdn ph\u01b0\u01a1ng \u00e1n \u0110\u00daNG","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":" Th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a kh\u00ed \u0111\u1ed3ng h\u00e0nh l\u00e0 ","select":["A. $C_2H_2$.","B. $CH_4$.","C. $C_2H_4$.","D. $H_2$."],"hint":"","explain":"<span class='basic_left'>$CH_4$ l\u00e0 th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a kh\u00ed \u0111\u1ed3ng h\u00e0nh<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":2431},{"time":24,"part":[{"title":"Ch\u1ecdn ph\u01b0\u01a1ng \u00e1n \u0110\u00daNG","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":" M\u1ecf d\u1ea7u th\u01b0\u1eddng c\u00f3 m\u1ea5y l\u1edbp","select":["A. 1","B. 2","C. 3 ","D. 4"],"hint":"","explain":"<span class='basic_left'>M\u1ecf d\u1ea7u th\u01b0\u1eddng c\u00f3 3 l\u1edbp: l\u1edbp kh\u00ed \u1edf tr\u00ean, l\u1edbp d\u1ea7u l\u1ecfng c\u00f3 h\u00f2a tan kh\u00ed \u1edf gi\u1eefa v\u00e0 m\u1ed9t l\u1edbp n\u01b0\u1edbc m\u1eb7n<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":2432},{"time":24,"part":[{"title":"Ch\u1ecdn ph\u01b0\u01a1ng \u00e1n \u0110\u00daNG","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":" S\u1ea3n ph\u1ea9m ch\u01b0ng c\u1ea5t d\u1ea7u m\u1ecf g\u1ed3m:","select":["A. X\u0103ng","B. D\u1ea7u h\u1ecfa v\u00e0 c\u00e1c s\u1ea3n ph\u1ea9m kh\u00e1c","C. X\u0103ng, d\u1ea7u h\u1ecfa v\u00e0 nhi\u1ec1u s\u1ea3n ph\u1ea9m kh\u00e1c ","D. Kh\u00ed thi\u00ean nhi\u00ean, x\u0103ng."],"hint":"","explain":"<span class='basic_left'>Ch\u01b0ng c\u1ea5t d\u1ea7u m\u1ecf ng\u01b0\u1eddi ta thu \u0111\u01b0\u1ee3c x\u0103ng, d\u1ea7u h\u1ecfa v\u00e0 nhi\u1ec1u s\u1ea3n ph\u1ea9m kh\u00e1c<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n l\u00e0 C.<\/span><\/span> ","column":1}]}],"id_ques":2433},{"time":24,"part":[{"title":"Ch\u1ecdn ph\u01b0\u01a1ng \u00e1n \u0110\u00daNG","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":" D\u1ea7u m\u1ecf n\u01b0\u1edbc ta c\u00f3 h\u00e0m l\u01b0\u1ee3ng h\u1ee3p ch\u1ea5t ch\u1ee9a l\u01b0u hu\u1ef3nh ","select":["A. nh\u1ecf h\u01a1n 0,5%.","B. l\u1edbn h\u01a1n 0,5%.","C. b\u1eb1ng 0,5%. ","D. b\u1eb1ng 0,05%."],"hint":"","explain":"<span class='basic_left'>D\u1ea7u m\u1ecf n\u01b0\u1edbc ta ch\u1ee9a h\u00e0m l\u01b0\u1ee3ng c\u00e1c h\u1ee3p ch\u1ea5t ch\u1ee9a l\u01b0u hu\u1ef3nh th\u1ea5p (<0,5%) <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n l\u00e0 A.<\/span><\/span> ","column":2}]}],"id_ques":2434},{"time":24,"part":[{"title":"Ch\u1ecdn ph\u01b0\u01a1ng \u00e1n \u0110\u00daNG","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":" Cr\u0103ckinh d\u1ea7u m\u1ecf \u0111\u1ec3 thu \u0111\u01b0\u1ee3c ","select":["A. h\u1ed7n h\u1ee3p g\u1ed3m nhi\u1ec1u hi\u0111rocacbon c\u00f3 ph\u00e2n t\u1eed kh\u1ed1i nh\u1ecf h\u01a1n.","B. h\u1ed7n h\u1ee3p g\u1ed3m nhi\u1ec1u hi\u0111rocacbon c\u00f3 ph\u00e2n t\u1eed kh\u1ed1i l\u1edbn h\u01a1n.","C. d\u1ea7u th\u00f4.","D. hi\u0111rocacbon nguy\u00ean ch\u1ea5t."],"hint":"","explain":"<span class='basic_left'>Cr\u0103ckinh (ngh\u0129a l\u00e0 b\u1ebb g\u00e3y ph\u00e2n t\u1eed) \u0111\u1ec3 thu \u0111\u01b0\u1ee3c h\u1ed7n h\u1ee3p g\u1ed3m nhi\u1ec1u hi\u0111rocacbon c\u00f3 ph\u00e2n t\u1eed kh\u1ed1i nh\u1ecf h\u01a1n.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n l\u00e0 A.<\/span><\/span> ","column":1}]}],"id_ques":2435},{"time":24,"part":[{"title":"Ch\u1ecdn ph\u01b0\u01a1ng \u00e1n \u0110\u00daNG","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":" Nh\u1eadn x\u00e9t n\u00e0o sau \u0111\u00e2u \u0111\u00fang khi n\u00f3i v\u1ec1 d\u1ea7u m\u1ecf:","select":["A. D\u1ea7u m\u1ecf l\u00e0 m\u1ed9t \u0111\u01a1n ch\u1ea5t","B. D\u1ea7u m\u1ecf l\u00e0 m\u1ed9t h\u1ee3p ch\u1ea5t","C. D\u1ea7u m\u1ecf l\u00e0 h\u1ed7n h\u1ee3p c\u1ee7a nhi\u1ec1u lo\u1ea1i hi\u0111rocacbon","D. D\u1ea7u m\u1ecf l\u00e0 h\u1ed7n h\u1ee3p c\u1ee7a nhi\u1ec1u lo\u1ea1i d\u1eabn xu\u1ea5t hi\u0111rocacbon"],"hint":"","explain":"<span class='basic_left'>D\u1ea7u m\u1ecf l\u00e0 h\u1ed7n h\u1ee3p c\u1ee7a nhi\u1ec1u lo\u1ea1i hi\u0111rocacbon ngo\u00e0i ra c\u00f2s 1 l\u01b0\u1ee3ng nh\u1ecf ch\u1ee9a c\u00e1c h\u1ee3p ch\u1ea5t h\u1eefu c\u01a1 ch\u1ee9a oxi, nit\u01a1,....<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n l\u00e0 C.<\/span><\/span> ","column":1}]}],"id_ques":2436},{"time":24,"part":[{"title":"Ch\u1ecdn ph\u01b0\u01a1ng \u00e1n \u0110\u00daNG","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":" S\u1ea3n ph\u1ea9m n\u00e0o sau \u0111\u00e2y KH\u00d4NG thu \u0111\u01b0\u1ee3c t\u1eeb qu\u00e1 tr\u00ecnh tr\u01b0ng c\u1ea5t d\u1ea7u m\u1ecf:","select":["A. Nh\u1ef1a d\u1ebbo","B. Kh\u00ed \u0111\u1ed1t ","C. X\u0103ng ","D. D\u1ea7u \u0111iezen"],"hint":"","explain":"<span class='basic_left'>S\u1ea3n ph\u1ea9m thu \u0111\u01b0\u1ee3c t\u1eeb qu\u00e1 tr\u00ecnh tr\u01b0ng c\u1ea5t d\u1ea7u m\u1ecf g\u1ed3m: kh\u00ed \u0111\u1ed1t, x\u0103ng, d\u1ea7u \u0111i\u00eazn, nh\u1ef1a \u0111\u01b0\u1eddng,...<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n l\u00e0 A.<\/span><\/span> ","column":2}]}],"id_ques":2437},{"time":24,"part":[{"title":"Ch\u1ecdn ph\u01b0\u01a1ng \u00e1n \u0110\u00daNG","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":" T\u00ednh ch\u1ea5t v\u1eadt l\u00ed n\u00e0o sau \u0111\u00e2y KH\u00d4NG ph\u1ea3i c\u1ee7a d\u1ea7u m\u1ecf:","select":["A. Ch\u1ea5t l\u1ecfng s\u00e1nh, m\u00e0u n\u00e2u \u0111en","B. N\u1ed5i tr\u00ean b\u1ec1 m\u1eb7t n\u01b0\u1edbc","C. Kh\u00f4ng tan trong n\u01b0\u1edbc ","D. Kh\u1ed1i l\u01b0\u1ee3ng ri\u00eang n\u1eb7ng h\u01a1n n\u01b0\u1edbc"],"hint":"","explain":"<span class='basic_left'>D\u1ea7u m\u1ecf l\u00e0 ch\u1ea5t l\u1ecfng s\u00e1nh, m\u00e0u n\u00e2u \u0111en, kh\u00f4ng tan trong n\u01b0\u1edbc v\u00e0 nh\u1eb9 h\u01a1n n\u01b0\u1edbc.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n l\u00e0 D.<\/span><\/span> ","column":1}]}],"id_ques":2438},{"time":24,"part":[{"title":"Ch\u1ecdn ph\u01b0\u01a1ng \u00e1n \u0110\u00daNG","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":" Th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a kh\u00ed thi\u00ean nhi\u00ean l\u00e0:","select":["A. Metan","B. Etilen","C. Axetilen","D. Hi\u0111ro"],"hint":"","explain":"<span class='basic_left'>Metan l\u00e0 th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a kh\u00ed thi\u00ean nhi\u00ean<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n l\u00e0 A.<\/span><\/span> ","column":2}]}],"id_ques":2439},{"time":24,"part":[{"title":"Ch\u1ecdn ph\u01b0\u01a1ng \u00e1n \u0110\u00daNG","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":" Cracking l\u00e0 qu\u00e1 tr\u00ecnh:","select":["A. \u0110\u1ed3ng h\u00f3a c\u00e1c ph\u00e2n t\u1eed","B. Hi\u0111ro h\u00f3a v\u00e0 \u0111\u00f3ng v\u00f2ng ph\u00e2n t\u1eed d\u01b0\u1edbi t\u00e1c d\u1ee5ng c\u1ee7a nhi\u1ec7t x\u00fac t\u00e1c","C. B\u1ebb g\u00e3y c\u00e1c ph\u00e2n t\u1eed hi\u0111rocacbon nh\u1edd t\u00e1c d\u1ee5ng c\u1ee7a nhi\u1ec7t ho\u1eb7c x\u00fac t\u00e1c v\u00e0 nhi\u1ec7t.","D. Bi\u1ebfn \u0111\u1ed5i c\u1ea5u tr\u00fac c\u1ee7a hi\u0111rocacbon t\u1eeb kh\u00f4ng ph\u00e2n nh\u00e1nh th\u00e0nh ph\u00e2n nh\u00e1nh, t\u1eeb kh\u00f4ng th\u01a1m th\u00e0nh th\u01a1m d\u01b0\u1edbi t\u00e1c d\u1ee5ng c\u1ee7a nhi\u1ec7t v\u00e0 x\u00fac t\u00e1c."],"hint":"","explain":"<span class='basic_left'>Cracking l\u00e0 qu\u00e1 tr\u00ecnh: B\u1ebb g\u00e3y c\u00e1c ph\u00e2n t\u1eed hi\u0111rocacbon nh\u1edd t\u00e1c d\u1ee5ng c\u1ee7a nhi\u1ec7t ho\u1eb7c x\u00fac t\u00e1c v\u00e0 nhi\u1ec7t<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n l\u00e0 C.<\/span><\/span> ","column":1}]}],"id_ques":2440},{"time":24,"part":[{"title":"Ch\u1ecdn ph\u01b0\u01a1ng \u00e1n \u0110\u00daNG","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":" Kh\u00ed thi\u00ean nhi\u00ean ph\u1ea7n l\u1edbn \u1edf n\u01b0\u1edbc ta:","select":["A. Thu \u0111\u01b0\u1ee3c khi nung than \u0111\u00e1","B. C\u00f3 trong d\u1ea7u m\u1ecf","C. Khai th\u00e1c t\u1eeb c\u00e1c m\u1ecf kh\u00ed ","D. Sinh ra khi ch\u1ebf bi\u1ebfn d\u1ea7u m\u1ecf"],"hint":"","explain":"<span class='basic_left'>Ph\u1ea7n l\u1edbn l\u01b0\u1ee3ng kh\u00ed thi\u00ean nhi\u00ean \u1edf n\u01b0\u1edbc ta c\u00f3 \u0111\u01b0\u1ee3c nh\u1edd khai th\u00e1c t\u1eeb c\u00e1c m\u1ecf kh\u00ed thi\u00ean nhi\u00ean.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n l\u00e0 C.<\/span><\/span> ","column":1}]}],"id_ques":2441},{"time":24,"part":[{"title":"Ch\u1ecdn ph\u01b0\u01a1ng \u00e1n \u0110\u00daNG","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":" \u0110\u1ec3 \u0111\u1ed1t ch\u00e1y ho\u00e0n to\u00e0n l\u01b0\u1ee3ng kh\u00ed thi\u00ean nhi\u00ean ch\u1ee9a 6,72 l\u00edt kh\u00ed metan (c\u00f2n l\u1ea1i l\u00e0 c\u00e1c ch\u1ea5t kh\u00f4ng ch\u00e1y) c\u1ea7n l\u01b0\u1ee3ng oxi c\u00f3 th\u1ec3 t\u00edch l\u00e0:","select":["A. 6,72 l\u00edt","B. 8,96 l\u00edt","C. 13,44 l\u00edt","D. 22,4 l\u00edt"],"hint":"","explain":"<span class='basic_left'>$\\begin{aligned} & C{{H}_{4}}+2{{O}_{2}}\\xrightarrow{{{t}^{0}}}C{{O}_{2}}+2{{H}_{2}}O \\\\ & {{n}_{{{O}_{2}}}}=2{{n}_{C{{O}_{2}}}}=0,6\\,mol \\\\ & {{V}_{{{O}_{2}}}}=13,44\\,L \\\\ \\end{aligned}$ <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":2442},{"time":24,"part":[{"title":"Ch\u1ecdn ph\u01b0\u01a1ng \u00e1n \u0110\u00daNG","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":" \u0110\u1ec3 d\u1eadp t\u1eaft \u0111\u00e1m ch\u00e1y nh\u1ecf do x\u0103ng, d\u1ea7u ng\u01b0\u1eddi ta d\u00f9ng bi\u1ec7n ph\u00e1p ","select":["A. phun n\u01b0\u1edbc v\u00e0o ng\u1ecdn l\u1eeda.","B. ph\u1ee7 c\u00e1t v\u00e0o ng\u1ecdn l\u1eeda.","C. th\u1ed5i oxi v\u00e0o ng\u1ecdn l\u1eeda. ","D. phun dung d\u1ecbch mu\u1ed1i \u0103n v\u00e0o ng\u1ecdn l\u1eeda."],"hint":"","explain":"<span class='basic_left'>Do x\u0103ng nh\u1eb9 h\u01a1n n\u01b0\u1edbc n\u00ean kh\u00f4ng th\u1ec3 d\u00f9ng n\u01b0\u1edbc d\u1eadp t\u1eaft \u0111\u00e1m ch\u00e1y x\u0103ng d\u1ea7u m\u00e0 ph\u1ea3i d\u00f9ng c\u00e1t \u0111\u1ec3 ph\u1ee7 l\u00ean ng\u1ecdn l\u1eeda \u0111\u1ec3 x\u0103ng kh\u00f4ng ti\u1ebfp x\u00fac v\u1edbi oxi v\u00e0 kh\u00f4ng ch\u00e1y \u0111\u01b0\u1ee3c.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n l\u00e0 B.<\/span><\/span> ","column":1}]}],"id_ques":2443},{"time":24,"part":[{"title":"Ch\u1ecdn ph\u01b0\u01a1ng \u00e1n \u0110\u00daNG","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":" Th\u1ec3 t\u00edch oxi c\u1ea7n d\u00f9ng \u0111\u1ec3 \u0111\u1ed1t ch\u00e1y ho\u00e0n to\u00e0n 10 l\u00edt kh\u00ed thi\u00ean nhi\u00ean ch\u1ee9a 96% metan; 2% nit\u01a1 v\u00e0 2% kh\u00ed cacbon \u0111ioxit l\u00e0 (c\u00e1c th\u1ec3 t\u00edch kh\u00ed \u0111o trong c\u00f9ng \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9, \u00e1p su\u1ea5t) ","select":["A. 9,6 l\u00edt.","B. 19,2 l\u00edt.","C. 28,8 l\u00edt.","D. 4,8 l\u00edt."],"hint":"","explain":"<span class='basic_left'>$\\begin{aligned} & {{V}_{C{{H}_{4}}}}=\\dfrac{10.96\\%}{100\\%}=9,6\\,L \\\\ & C{{H}_{4}}+2{{O}_{2}}\\xrightarrow{{{t}^{0}}}C{{O}_{2}}+2{{H}_{2}}O \\\\ & {{V}_{{{O}_{2}}}}=2{{V}_{C{{H}_{4}}}}=19,2\\,L \\\\ \\end{aligned}$ <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":2444},{"time":24,"part":[{"title":"Ch\u1ecdn ph\u01b0\u01a1ng \u00e1n \u0110\u00daNG","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":" S\u1ef1 c\u1ed1 tr\u00e0n d\u1ea7u do ch\u00ecm t\u00e0u l\u00e0 th\u1ea3m h\u1ecda m\u00f4i tr\u01b0\u1eddng v\u00ec:","select":["A. Do d\u1ea7u kh\u00f4ng tan trong n\u01b0\u1edbc","B. Do d\u1ea7u s\u00f4i \u1edf c\u00e1c nhi\u1ec7t \u0111\u1ed9 s\u00f4i kh\u00e1c nhau","C. Do d\u1ea7u nh\u1eb9 h\u01a1n n\u01b0\u1edbc, n\u1ed5i tr\u00ean b\u1ec1 m\u1eb7t c\u1ea3m tr\u1edf s\u1ef1 h\u00f2a tan c\u1ee7a khi oxi l\u00e0m c\u00e1c sinh v\u1eadt d\u01b0\u1edbi n\u01b0\u1edbc b\u1ecb ch\u1ebft.","D. Do lan r\u1ed9ng tr\u00ean m\u1eb7t n\u01b0\u1edbc b\u1ecb s\u00f3ng, gi\u00f3 cu\u1ed1n \u0111i xa r\u1ea5t kh\u00f3 x\u1eed l\u00ed."],"hint":"","explain":"<span class='basic_left'>S\u1ef1 c\u1ed1 tr\u00e0n d\u1ea7u g\u00e2y \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng v\u00e0 m\u1ea5t c\u00e2n b\u1eb1ng sinh th\u00e1i do: Do d\u1ea7u nh\u1eb9 h\u01a1n n\u01b0\u1edbc, n\u1ed5i tr\u00ean b\u1ec1 m\u1eb7t c\u1ea3m tr\u1edf s\u1ef1 h\u00f2a tan c\u1ee7a khi oxi l\u00e0m c\u00e1c sinh v\u1eadt d\u01b0\u1edbi n\u01b0\u1edbc b\u1ecb ch\u1ebft<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n l\u00e0 C.<\/span><\/span> ","column":1}]}],"id_ques":2445},{"time":24,"part":[{"title":"Ch\u1ecdn ph\u01b0\u01a1ng \u00e1n \u0110\u00daNG","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":"\u0110\u1ed1t ch\u00e1y ho\u00e0n to\u00e0n 2,24 l\u00edt kh\u00ed thi\u00ean nhi\u00ean d\u1eabn kh\u00ed ch\u1ee9a ch\u1ee9a 96% $CH_4$; 2% $N_2$ v\u00e0 2% $CO_2$ r\u1ed3i d\u1eabn to\u00e0n b\u1ed9 s\u1ea3n ph\u1ea9m qua dung d\u1ecbch n\u01b0\u1edbc v\u00f4i trong d\u01b0 ta thu \u0111\u01b0\u1ee3c m gam k\u1ebft t\u1ee7a. Gi\u00e1 tr\u1ecb c\u1ee7a m l\u00e0:","select":["A. 9,6 gam ","B. 9,7 gam","C. 9,8 gam ","D. 10 gam"],"hint":"","explain":"<span class='basic_left'>$\\begin{aligned} & {{n}_{hh}}=0,1\\,mol \\\\ & {{n}_{C{{H}_{4}}}}=\\dfrac{0,1.96\\%}{100\\%}=0,096\\,mol \\\\ & {{n}_{C{{O}_{2}}\\,\\,(hh)}}=\\dfrac{0,1.2\\%}{100\\%}=0,002\\,mol \\\\ & C{{H}_{4}}+2{{O}_{2}}\\xrightarrow{{{t}^{0}}}C{{O}_{2}}+2{{H}_{2}}O\\,\\,\\,\\,(1) \\\\ & {{n}_{C{{O}_{2}}\\,\\,(1)}}={{n}_{C{{H}_{4}}}}=0,096\\,mol \\\\ & \\text{T\u1ed5ng}\\,{{n}_{C{{O}_{2}}}}=0,096+0,002=0,098\\,mol \\\\ & C{{O}_{2}}+Ca{{(OH)}_{2}}\\to CaC{{O}_{3}}\\downarrow +{{H}_{2}}O \\\\ & {{n}_{\\downarrow }}={{n}_{C{{O}_{2}}}}=0,098\\,mol \\\\ & {{m}_{\\downarrow }}=9,8\\,gam \\\\ \\end{aligned}$ <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":2446},{"time":24,"part":[{"title":"Ch\u1ecdn ph\u01b0\u01a1ng \u00e1n \u0110\u00daNG","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":" Khi ch\u1ebf bi\u1ebfn 1 t\u1ea5n d\u1ea7u m\u1ecf ng\u01b0\u1eddi ta thu \u0111\u01b0\u1ee3c kh\u1ed1i l\u01b0\u1ee3ng x\u0103ng l\u00e0 bao nhi\u00eau. Bi\u1ebft l\u01b0\u1ee3ng x\u0103ng trong d\u1ea7u m\u1ecf chi\u1ebfm 40% kh\u1ed1i l\u01b0\u1ee3ng d\u1ea7u m\u1ecf, hi\u1ec7u su\u1ea5t ch\u1ebf bi\u1ebfn \u0111\u1ea1t 85%.","select":["A. 471 kg","B. 400 kg ","C. 340 kg","D. 300 kg"],"hint":"","explain":"<span class='basic_left'>\u0110\u1ed5i 1 t\u1ea5n = 1000 kg <br\/> $\\begin{aligned} & {{m}_{\\text{x\u0103ng (LT)}}}=\\dfrac{1000.40\\%}{100\\%}=400\\,kg \\\\ & H=85\\%\\Rightarrow {{m}_{\\text{x\u0103ng (TT)}}}=\\dfrac{400.85\\%}{100\\%}=340\\,kg \\\\ \\end{aligned}$ <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":2447},{"time":24,"part":[{"title":"Ch\u1ecdn ph\u01b0\u01a1ng \u00e1n \u0110\u00daNG","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":"L\u01b0\u1ee3ng kh\u00ed cacbonic th\u1ea3i ra ngo\u00e0i m\u00f4i tr\u01b0\u1eddng l\u00e0 bao nhi\u00eau l\u00edt khi \u0111\u1ed1t ch\u00e1y ho\u00e0n to\u00e0n 10 l\u00edt kh\u00ed thi\u00ean nhi\u00ean c\u00f3 ch\u1ee9a 95% $CH_4$; 2% $N_2$ v\u00e0 3% $CO_2$","select":["A. 9,6 l\u00edt","B. 9,7 l\u00edt","C. 9,8 l\u00edt","D. 10 l\u00edt"],"hint":"","explain":"<span class='basic_left'>$\\begin{aligned} & {{V}_{C{{O}_{2}}\\,\\,(hh)}}=\\dfrac{10.3\\%}{100\\%}=0,3\\,L \\\\ & {{V}_{C{{H}_{4}}}}=\\dfrac{10.95\\%}{100\\%}=9,5\\,L \\\\ & C{{H}_{4}}+2{{O}_{2}}\\xrightarrow{{{t}^{0}}}C{{O}_{2}}+2{{H}_{2}}O\\,\\,\\,\\,(1) \\\\ & {{V}_{C{{O}_{2}}\\,\\,(1)}}={{V}_{C{{H}_{4}}}}=9,5\\,L \\\\ & \\text{T\u1ed5ng}\\,{{V}_{C{{O}_{2}}}}=9,5+0,3=9,8\\,L \\\\ \\end{aligned}$ <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":2448},{"time":24,"part":[{"title":"Ch\u1ecdn ph\u01b0\u01a1ng \u00e1n \u0110\u00daNG","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":" \u0110\u1ed1t ho\u00e0n to\u00e0n V l\u00edt (\u1edf \u0111ktc) kh\u00ed thi\u00ean nhi\u00ean c\u00f3 ch\u1ee9a 96% $CH_4$; 2% $N_2$ v\u00e0 2% $CO_2$ r\u1ed3i d\u1eabn to\u00e0n b\u1ed9 s\u1ea3n ph\u1ea9m qua dung d\u1ecbch n\u01b0\u1edbc v\u00f4i trong d\u01b0 ta thu \u0111\u01b0\u1ee3c 29,4 gam k\u1ebft t\u1ee7a. Gi\u00e1 tr\u1ecb c\u1ee7a V l\u00e0 ","select":["A. 6,86 l\u00edt","B. 6,72 l\u00edt","C. 4,48 l\u00edt","D. 67,2 l\u00edt."],"hint":"","explain":"<span class='basic_left'>Gi\u1ea3 s\u1eed c\u00f3 x mol kh\u00ed thi\u00ean nhi\u00ean. <br\/> $\\begin{aligned} & {{n}_{C{{H}_{4}}}}=\\dfrac{x.96\\%}{100\\%}=0,96x\\,\\,mol \\\\ & {{n}_{C{{O}_{2}}\\,\\,(hh)}}=\\dfrac{x.2\\%}{100\\%}=0,02x\\,\\,mol \\\\ & C{{H}_{4}}+2{{O}_{2}}\\xrightarrow{{{t}^{0}}}C{{O}_{2}}+2{{H}_{2}}O\\,\\,\\,\\,(1) \\\\ & {{n}_{C{{O}_{2}}\\,\\,(1)}}={{n}_{C{{H}_{4}}}}=0,96x\\,\\,mol \\\\ & \\text{T\u1ed5ng}\\,{{n}_{C{{O}_{2}}}}=0,96x\\,\\,mol+0,02x=0,98x\\,mol \\\\ & C{{O}_{2}}+Ca{{(OH)}_{2}}\\to CaC{{O}_{3}}\\downarrow +{{H}_{2}}O \\\\ & {{n}_{C{{O}_{2}}}}={{n}_{\\downarrow }}=0,294\\,mol\\Rightarrow 0,98x=0,294\\Rightarrow x=0,3\\,mol \\\\ & V=0,3.22,4=6,72\\,L \\\\ \\end{aligned}$ <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":2449},{"time":24,"part":[{"title":"Ch\u1ecdn ph\u01b0\u01a1ng \u00e1n \u0110\u00daNG","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"Th\u1ec3 t\u00edch oxi c\u1ea7n d\u00f9ng \u0111\u1ec3 \u0111\u1ed1t ch\u00e1y ho\u00e0n to\u00e0n 5 l\u00edt kh\u00ed thi\u00ean nhi\u00ean ch\u1ee9a 95% metan; 2% nit\u01a1; 2% kh\u00ed cacbon monooxit v\u00e0 1% cacbon \u0111ioxit l\u00e0 (c\u00e1c th\u1ec3 t\u00edch kh\u00ed \u0111o trong c\u00f9ng \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9, \u00e1p su\u1ea5t) ","select":["A. 9,55 l\u00edt.","B. 9,5 l\u00edt.","C. 4,75 l\u00edt.","D. 5 l\u00edt."],"hint":"","explain":"<span class='basic_left'>$\\begin{aligned} & {{V}_{CO\\,\\,(hh)}}=\\dfrac{5.2\\%}{100\\%}=0,1\\,L \\\\ & {{V}_{C{{H}_{4}}}}=\\dfrac{5.95\\%}{100\\%}=4,75\\,\\,L \\\\ & C{{H}_{4}}+2{{O}_{2}}\\xrightarrow{{{t}^{0}}}C{{O}_{2}}+2{{H}_{2}}O\\,\\,\\,\\,(1) \\\\ & \\Rightarrow {{V}_{{{O}_{2}}\\,(1)}}=2{{V}_{C{{H}_{4}}}}=9,5\\,L \\\\ & 2CO+{{O}_{2}}\\xrightarrow{{{t}^{0}}}2C{{O}_{2}}\\,\\,\\,\\,\\,(2) \\\\ & \\Rightarrow {{V}_{{{O}_{2}}\\,(2)}}=\\dfrac{1}{2}{{V}_{CO}}=0,05\\,L \\\\ & \\Rightarrow {{V}_{{{O}_{2}}}}=9,5+0,05=9,55\\,L \\\\ & \\,\\, \\\\ \\end{aligned}$ <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n l\u00e0 A.<\/span><\/span> ","column":2}]}],"id_ques":2450}],"lesson":{"save":0,"level":2}}