{"id":1053,"date":"2021-10-08T13:07:17","date_gmt":"2021-10-08T13:07:17","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=1053"},"modified":"2021-10-14T22:07:21","modified_gmt":"2021-10-14T15:07:21","slug":"ancol-la-gi-va-nhung-tinh-chat-vat-ly-va-hoa-hoc-cua-ancol","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/ancol-la-gi-va-nhung-tinh-chat-vat-ly-va-hoa-hoc-cua-ancol\/","title":{"rendered":"Ancol l\u00e0 g\u00ec v\u00e0 nh\u1eefng t\u00ednh ch\u1ea5t v\u1eadt l\u00fd v\u00e0 h\u00f3a h\u1ecdc c\u1ee7a Ancol"},"content":{"rendered":"\n

Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn<\/p>\n\n\n\n

\u0110\u1ec3 c\u00f3 th\u1ec3 l\u00e0m c\u00e1c b\u00e0i t\u1eadp li\u00ean quan \u0111\u1ebfn ch\u1ee7 \u0111\u1ec1 ancol, ch\u00fang ta c\u1ea7n ph\u1ea3i bi\u1ebft ancol l\u00e0 g\u00ec, ancol etylic l\u00e0 g\u00ec. \u0110\u1ed3ng th\u1eddi t\u00ecm hi\u1ec3u v\u1ec1 t\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u0169ng nh\u01b0 h\u00f3a h\u1ecdc c\u1ee7a ch\u00fang. Trong b\u00e0i vi\u1ebft n\u00e0y, Vietlearn s\u1ebd gi\u00fap b\u1ea1n h\u1ec7 th\u1ed1ng l\u1ea1i to\u00e0n b\u1ed9 ki\u1ebfn th\u1ee9c xoay quanh ch\u1ee7 \u0111\u1ec1 n\u00e0y.<\/p>\n\n\n\n

Ancol l\u00e0 g\u00ec?<\/p>\n\n\n\n

\u0110\u1ecbnh ngh\u0129a Ancol l\u00e0 g\u00ec?<\/p>\n\n\n\n

Ancol hay c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi v\u1edbi c\u00e1i t\u00ean quen thu\u1ed9c l\u00e0 r\u01b0\u1ee3u. Ch\u00fang l\u00e0 m\u1ed9t h\u1ee3p ch\u1ea5t h\u1eefu c\u01a1 c\u00f3 ch\u1ee9a nh\u00f3m \u2013OH \u0111\u01b0\u1ee3c g\u1eafn v\u00e0o m\u1ed9t nguy\u00ean t\u1eed cacbon nh\u01b0ng \u0111\u1ebfn l\u01b0\u1ee3t n\u00f3 th\u00ec l\u1ea1i g\u1eafn v\u1edbi m\u1ed9t nguy\u00ean t\u1eed hydro hay cacbon kh\u00e1c.<\/p>\n\n\n\n

C\u1ea5u tr\u00fac c\u1ee7a ancol g\u1ed3m nh\u00f3m ch\u1ee9c hydroxyl -OH g\u1eafn v\u1edbi cacbon lai sp\u00b3. C\u00f2n g\u1ecdi l\u00e0 nh\u00f3m ch\u1ee9c ancol.<\/p>\n\n\n\n

Ph\u00e2n lo\u1ea1i<\/p>\n\n\n\n

T\u1eeb \u0111\u1ecbnh ngh\u0129a ancol l\u00e0 g\u00ec v\u00e0 c\u1ea5u tr\u00fac c\u1ee7a ch\u00fang, ch\u00fang ta c\u00f3 th\u1ec3 ph\u00e2n lo\u1ea1i ancol nh\u01b0 sau:<\/p>\n\n\n\n

Ph\u00e2n lo\u1ea1i theo c\u1ea5u tr\u00fac s\u1ebd c\u00f3 ancol m\u1ea1ch th\u1eb3ng v\u00e0 ancol m\u1ea1ch nh\u00e1nh, v\u00f2ng.<\/p>\n\n\n\n

Ph\u00e2n lo\u1ea1i theo li\u00ean k\u1ebft cacbon g\u1ed3m ancol no v\u00e0 ancol kh\u00f4ng no. V\u00ed d\u1ee5: CH3-CH2-OH l\u00e0 ancol no v\u00e0 CH2=CH-CH2-OH l\u00e0 ancol kh\u00f4ng no.<\/p>\n\n\n\n

Ph\u00e2n lo\u1ea1i theo ch\u1ee9c ancol c\u00f3 ancol \u0111\u01a1n ch\u1ee9c v\u00e0 ancol \u0111a ch\u1ee9c. V\u00ed d\u1ee5: CH3-CH2-OH (etanol) l\u00e0 ancol m\u1ed9t l\u1ea7n ancol c\u00f2n OH-CH2-CH2-OH (ethylene glycol) l\u00e0 ancol hai l\u1ea7n ancol.<\/p>\n\n\n\n

T\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ee7a ancol l\u00e0 g\u00ec?<\/p>\n\n\n\n

Tr\u1ea1ng th\u00e1i t\u1ed3n t\u1ea1i: T\u1eeb C1 \u0111\u1ebfn C12 l\u00e0 ch\u1ea5t l\u1ecfng, t\u1eeb C13 tr\u1edf l\u00ean l\u00e0 ch\u1ea5t r\u1eafn.<\/p>\n\n\n\n

Nhi\u1ec7t \u0111\u1ed9 s\u00f4i: So v\u1edbi c\u00e1c ch\u1ea5t c\u00f3 M t\u01b0\u01a1ng \u0111\u01b0\u01a1ng th\u00ec nhi\u1ec7t \u0111\u1ed9 s\u00f4i c\u1ee7a: Mu\u1ed1i > Axit > Ancol > Andehit > Hidrocacbon, ete v\u00e0 este\u2026 Nhi\u1ec7t \u0111\u1ed9 s\u00f4i s\u1ebd ph\u1ee5 thu\u1ed9c v\u00e0o y\u1ebfu t\u1ed1:<\/p>\n\n\n\n

\u0110\u1ed9 tan: Ancol c\u00f3 1, 2, 3 nguy\u00ean t\u1eed C trong ph\u00e2n t\u1eed tan v\u00f4 h\u1ea1n trong n\u01b0\u1edbc.<\/p>\n\n\n\n

C\u1ea5u tr\u00fac c\u1ee7a Ancol<\/p>\n\n\n\n

T\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a ancol l\u00e0 g\u00ec?<\/p>\n\n\n\n

Ancol ph\u1ea3n \u1ee9ng v\u1edbi kim lo\u1ea1i ki\u1ec1m (Ancol + Na)<\/p>\n\n\n\n

Ph\u1ea3n \u1ee9ng c\u1ee7a Ancol + Na<\/p>\n\n\n\n

R(OH)z + zNa \u2192 R(ONa)z + z\/2H2<\/p>\n\n\n\n

Ancol h\u1ea7u nh\u01b0 s\u1ebd kh\u00f4ng ph\u1ea3n \u1ee9ng \u0111\u01b0\u1ee3c c\u00f9ng v\u1edbi NaOH nh\u01b0ng natri ancolat s\u1ebd b\u1ecb ph\u00e2n h\u1ee7y ho\u00e0n to\u00e0n. C\u1ee5 th\u1ec3:<\/p>\n\n\n\n

R(ON\u0430)z + zH20 \u2192 R(OH)z + zNaOH<\/p>\n\n\n\n

Ch\u00fa \u00fd:<\/p>\n\n\n\n

Trong ph\u1ea3n \u1ee9ng c\u1ee7a ancol v\u1edbi Na th\u00ec:<\/p>\n\n\n\n

N\u1ebfu ch\u00fang ta cho dung d\u1ecbch ancol ph\u1ea3n \u1ee9ng v\u1edbi Na th\u00ec b\u00ean c\u1ea1nh ph\u1ea3n \u1ee9ng c\u1ee7a ancol c\u00f2n c\u00f3 ph\u1ea3n \u1ee9ng c\u1ee7a H2O v\u1edbi Na.<\/p>\n\n\n\n

S\u1ed1 nh\u00f3m ch\u1ee9c Ancol = 2.nH2\/nAncol<\/p>\n\n\n\n

<\/p><\/blockquote>\n\n\n\n

D\u1eabn xu\u1ea5t halogen c\u1ee7a hidrocacbon \u2013 H\u1ecdc t\u1ed1t h\u00f3a 11 c\u00f9ng Vietlearn<\/p>\n\n\n\n

Phenol l\u00e0 g\u00ec \u2013 T\u1ea5t t\u1ea7n t\u1eadt c\u00e1c th\u00f4ng tin v\u1ec1 Phenol h\u00f3a 11<\/p>\n\n\n\n

Ancol ph\u1ea3n \u1ee9ng v\u1edbi axit<\/p>\n\n\n\n

Ancol ph\u1ea3n \u1ee9ng v\u1edbi axit v\u00f4 c\u01a1 HX (Ancol + H2SO4, Ancol + HCl)<\/p>\n\n\n\n

Trong \u0111\u00f3: s\u1ed1 nguy\u00ean t\u1eed X s\u1ebd b\u1eb1ng t\u1ed5ng s\u1ed1 nh\u00f3m OH v\u00e0 s\u1ed1 li\u00ean k\u1ebft pi<\/p>\n\n\n\n

Ancol ph\u1ea3n \u1ee9ng v\u1edbi axit h\u1eefu c\u01a1 (ph\u1ea3n \u1ee9ng este h\u00f3a)<\/p>\n\n\n\n

ROH +R\u2019COOH \u21d4 R\u2019COOR + H2O<\/p>\n\n\n\n

yR(OH)x + xR\u2019(COOH)y \u21d4 R\u2019x(COO)xyRy + xyH2O<\/p>\n\n\n\n

Ch\u00fa \u00fd:<\/p>\n\n\n\n

Ph\u1ea3n \u1ee9ng ph\u1ea3i \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n trong m\u00f4i tr\u01b0\u1eddng axit v\u00e0 \u0111un n\u00f3ng.<\/p>\n\n\n\n

Ph\u1ea3n \u1ee9ng c\u00f3 t\u00ednh thu\u1eadn ngh\u1ecbch v\u00ec th\u1ebf c\u1ea7n ch\u00fa \u00fd \u0111\u1ebfn chuy\u1ec3n d\u1ecbch c\u00e2n b\u1eb1ng.<\/p>\n\n\n\n

Ph\u1ea3n \u1ee9ng t\u00e1ch n\u01b0\u1edbc<\/p>\n\n\n\n

T\u00e1ch n\u01b0\u1edbc t\u1eeb 1 ph\u00e2n t\u1eed ancol t\u1ea1o anken c\u1ee7a ancol no, \u0111\u01a1n ch\u1ee9c, m\u1ea1ch h\u1edf<\/p>\n\n\n\n

Cn H2n+1OH = CnH2n + H2O (H2SO4 \u0111\u1eb7c, >170 \u0111\u1ed9 C)<\/p>\n\n\n\n

\u0110i\u1ec1u ki\u1ec7n c\u1ee7a ancol khi tham gia ph\u1ea3n \u1ee9ng n\u00e0y l\u00e0 ph\u1ea3i c\u00f3 Hg.<\/p>\n\n\n\n

N\u1ebfu ancol no, \u0111\u01a1n ch\u1ee9c m\u1ea1ch h\u1edf kh\u00f4ng t\u00e1ch n\u01b0\u1edbc t\u1ea1o anken th\u00ec Ancol \u0111\u00f3 kh\u00f4ng c\u00f3 Ha (l\u00e0 CH3OH ho\u1eb7c ancol m\u00e0 nguy\u00ean t\u1eed C li\u00ean k\u1ebft v\u1edbi OH ch\u1ec9 li\u00ean k\u1ebft v\u1edbi C b\u1eadc 3 kh\u00e1c).<\/p>\n\n\n\n

N\u1ebfu m\u1ed9t ancol t\u00e1ch n\u01b0\u1edbc t\u1ea1o ra h\u1ed7n h\u1ee3p nhi\u1ec1u anken th\u00ec \u0111\u00f3 l\u00e0 ancol b\u1eadc cao (b\u1eadc II, b\u1eadc III) v\u00e0 m\u1ea1ch C kh\u00f4ng \u0111\u1ed1i x\u1ee9ng qua c li\u00ean k\u1ebft v\u1edbi OH.<\/p>\n\n\n\n

Nhi\u1ec1u ancol t\u00e1ch n\u01b0\u1edbc t\u1ea1o ra m\u1ed9t anken th\u00ec x\u1ea3y ra c\u00e1c kh\u1ea3 n\u0103ng sau:<\/p>\n\n\n\n

C\u00e1c ph\u1ea3n \u1ee9ng t\u00e1ch n\u01b0\u1edbc \u0111\u1eb7c bi\u1ec7t:<\/p>\n\n\n\n

CH2OH-CH2OH \u2192 CH3CHO + H2O<\/p>\n\n\n\n

CH2OH-CHOH-CH2OH \u2192 CH2=CH-CHO + 2H2O<\/p>\n\n\n\n

T\u00e1ch n\u01b0\u1edbc t\u1eeb 2 ph\u00e2n t\u1eed ancol t\u1ea1o ete<\/p>\n\n\n\n

ROH + ROH \u2192 ROR + H2O (H2SO4 \u0111\u1eb7c, 140 \u0111\u1ed9 C)<\/p>\n\n\n\n

Ch\u00fa \u00fd:<\/p>\n\n\n\n

T\u1eeb n ancol kh\u00e1c nhau khi t\u00e1ch n\u01b0\u1edbc ta thu \u0111\u01b0\u1ee3c n.(n + 1)\/2 ete trong \u0111\u00f3 c\u00f3 n ete \u0111\u1ed1i x\u1ee9ng.<\/p>\n\n\n\n

N\u1ebfu t\u00e1ch n\u01b0\u1edbc thu \u0111\u01b0\u1ee3c c\u00e1c ete c\u00f3 s\u1ed1 mol b\u1eb1ng nhau th\u00ec c\u00e1c ancol tham gia ph\u1ea3n \u1ee9ng c\u0169ng c\u00f3 s\u1ed1 mol b\u1eb1ng nhau v\u00e0 nAncol = 2.nete = 2.nH2O v\u00e0 nAncol = mete + nH2O + mAncol d\u01b0<\/p>\n\n\n\n

Ph\u1ea3n \u1ee9ng oxi h\u00f3a (Ancol + O2)<\/p>\n\n\n\n

oxi h\u00f3a ho\u00e0n to\u00e0n<\/p>\n\n\n\n

CxHyOz + (x + y\/4 \u2013 z\/2)O2 \u2192 xCO2 + y\/2H2O<\/p>\n\n\n\n

Ch\u00fa \u00fd:<\/p>\n\n\n\n

\u2013 Ph\u1ea3n \u1ee9ng \u0111\u1ed1t ch\u00e1y c\u1ee7a ancol s\u1ebd c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m t\u01b0\u01a1ng t\u1ef1 v\u1edbi ph\u1ea3n \u1ee9ng \u0111\u1ed1t ch\u00e1y hidrocacbon t\u01b0\u01a1ng \u1ee9ng.<\/p>\n\n\n\n

N\u1ebfu ch\u00fang ta \u0111\u1ed1t ch\u00e1y ancol v\u00e0 cho nH2O > nCO2 th\u00ec ancol \u0111em \u0111\u1ed1t ch\u00e1y l\u00e0 ancol no v\u00e0 nAncol = nH2O \u2013 nCO2.<\/p>\n\n\n\n

N\u1ebfu khi \u0111\u1ed1t ch\u00e1y ancol cho nH2O > 1,5.nCO2 th\u00ec ancol l\u00e0 CH3OH. Ch\u1ec9 c\u00f3 CH4 v\u00e0 CH3OH c\u00f3 t\u00ednh ch\u1ea5t n\u00e0y (kh\u00f4ng k\u1ec3 amin).<\/p>\n\n\n\n

Khi \u0111\u1ed1t ch\u00e1y 1 h\u1ee3p ch\u1ea5t h\u1eefu c\u01a1 X th\u1ea5y nH2O > nCO2 = ch\u1ea5t \u0111\u00f3 l\u00e0 ankan, ancol no m\u1ea1ch h\u1edf ho\u1eb7c ete no m\u1ea1ch h\u1edf (c\u00f9ng c\u00f3 c\u00f4ng th\u1ee9c CnH2n+2O4).<\/p>\n\n\n\n

Oxi h\u00f3a kh\u00f4ng ho\u00e0n to\u00e0n (Ancol + CuO ho\u1eb7c Ox c\u00f3 x\u00fac t\u00e1c l\u00e0 Cu)<\/p>\n\n\n\n

Ancol b\u1eadc l + Cuo t\u1ea1o an\u0111ehit: RCH2OH + CuORCHO + Cu + H2O<\/p>\n\n\n\n

Ancol b\u1eadc II + CuO t\u1ea1o xeton: RCHOHR\u2019 + CuO \u2013 RCOR\u2019 + Cu + H2O<\/p>\n\n\n\n

Ancol b\u1eadc III kh\u00f4ng b\u1ecb oxi h\u00f3a b\u1eb1ng CuO.<\/p>\n\n\n\n

Ch\u00fa \u00fd l\u00e0: mch\u1ea5t r\u1eafn gi\u1ea3m = mCuO ph\u1ea3n \u1ee9ng \u2013 mCu t\u1ea1o th\u00e0nh = 16.nAncol \u0111\u01a1n ch\u1ee9c<\/p>\n\n\n\n

Ph\u1ea3n \u1ee9ng ri\u00eang c\u1ee7a m\u1ed9t s\u1ed1 lo\u1ea1i ancol<\/p>\n\n\n\n

Ancol etylic CH3CH2OH:<\/p>\n\n\n\n

C2H5OH + O2 \u2192 CH3COOH + H2O (men gi\u1ea5m)<\/p>\n\n\n\n

2C2H5OH \u2192 CH2=CH-CH=CH2 + 2H2O + H2 (Al2O3, ZnO, 450\u00b0C)<\/p>\n\n\n\n

Ancol kh\u00f4ng no c\u00f3 ph\u1ea3n \u1ee9ng nh\u01b0 hidrocacbon t\u01b0\u01a1ng \u1ee9ng<\/p>\n\n\n\n

\u2013 Ph\u1ea3n \u1ee9ng v\u1edbi Hidro, alylic CH = CH \u2013 CH2OH: Ancol + H2<\/p>\n\n\n\n

CH2=CH-CH2OH + H2\u2192CH3-CH2-CH2OH (Ni, t9)<\/p>\n\n\n\n

\u2013 Ph\u1ea3n \u1ee9ng v\u1edbi Brom: Ancol + Br2<\/p>\n\n\n\n

CH2=CH-CH2OH + Br2 \u2192CH2Br-CHBr-CH2OH<\/p>\n\n\n\n

\u2013 Ph\u1ea3n \u1ee9ng v\u1edbi dd thu\u1ed1c t\u00edm: Ancol + KMnO4<\/p>\n\n\n\n

3CH2=CH-CH2OH + 2KMnO4 + 4H2O \u2192 3C3H5(OH)3 + 2KOH + 2MnO2<\/p>\n\n\n\n

Ancol \u0111a ch\u1ee9c c\u00f3 c\u00e1c nh\u00f3m OH li\u1ec1n k\u1ec1: t\u1ea1o dung d\u1ecbch m\u00e0u xanh lam v\u1edbi Cu(OH)2 \u1edf nhi\u1ec7t \u0111\u1ed9 th\u01b0\u1eddng<\/p>\n\n\n\n

2R(OH)2 + Cu(OH)2 \u2192 [R(OH)O]2Cu + 2H2O<\/p>\n\n\n\n

M\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p ancol kh\u00f4ng b\u1ec1n<\/p>\n\n\n\n

Ancol C\u00f3 nh\u00f3m OH li\u00ean k\u1ebft v\u1edbi C n\u1ed5i \u0111\u00f4i chuy\u1ec3n v\u1ecb th\u00e0nh an\u0111ehit ho\u1eb7c xeton:<\/p>\n\n\n\n

CH2=CH-OH \u2192 CH3CHO<\/p>\n\n\n\n

CH2=COH-CH3 \u2192 CH3-CO-CH3<\/p>\n\n\n\n

Ancol c\u00f3 2 nh\u00f3m OH c\u00f9ng g\u1eafn v\u00e0o 1 nguy\u00ean t\u1eed C b\u1ecb t\u00e1ch n\u01b0\u1edbc t\u1ea1o an\u0111ehit ho\u1eb7c xeton:<\/p>\n\n\n\n

RCH(OH)2 \u2192 RCHO + H2O<\/p>\n\n\n\n

HO-CO-OH \u2192 H2O + CO2<\/p>\n\n\n\n

RC(OH)2R \u2192 RCOR\u2019 + H2O<\/p>\n\n\n\n

Ancol c\u00f3 3 nh\u00f3m OH c\u00f9ng g\u1eafn v\u00e0o 1 nguy\u00ean t\u1eed C b\u1ecb t\u00e1ch n\u01b0\u1edbc t\u1ea1o th\u00e0nh axit:<\/p>\n\n\n\n

RC(OH)3 \u2192 RCOOH + H2O<\/p>\n\n\n\n

\u0110i\u1ec1u ch\u1ebf ancol th\u1ebf n\u00e0o?<\/p>\n\n\n\n

Ancol etylic l\u00e0 ch\u1ea5t g\u00ec?<\/p>\n\n\n\n

Ancol etylic (r\u01b0\u1ee3u etylic ho\u1eb7c etanol) l\u00e0 m\u1ed9t lo\u1ea1i ch\u1ea5t l\u1ecfng, kh\u00f4ng m\u00e0u. Nhi\u1ec7t \u0111\u1ed9 s\u00f4i l\u00e0 78,3 \u0111\u1ed9 C. Ch\u00fang nh\u1eb9 h\u01a1n n\u01b0\u1edbc v\u00e0 c\u00f3 th\u1ec3 tan v\u00f4 h\u1ea1n trong n\u01b0\u1edbc c\u0169ng nh\u01b0 h\u00f2a tan \u0111\u01b0\u1ee3c nhi\u1ec1u ch\u1ea5t nh\u01b0 iot, benzen,\u2026<\/p>\n\n\n\n

T\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a Ancol etylic g\u1ed3m:<\/p>\n\n\n\n

Ph\u1ea3n \u1ee9ng ch\u00e1y<\/p>\n\n\n\n

T\u00e1c d\u1ee5ng v\u1edbi kim lo\u1ea1i m\u1ea1nh nh\u01b0 K, Na,\u2026<\/p>\n\n\n\n

T\u00e1c d\u1ee5ng v\u1edbi axit<\/p>\n\n\n\n

\u0110\u1ec3 h\u1ecdc t\u1ed1t m\u00f4n h\u00f3a h\u1ecdc kh\u00f4ng kh\u00f3, ch\u1ec9 c\u1ea7n b\u1ea1n n\u1eafm \u0111\u01b0\u1ee3c nh\u1eefng ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n<\/a>. T\u00ecm hi\u1ec3u th\u00eam v\u1ec1 ancol l\u00e0 g\u00ec v\u00e0 c\u00e1c ki\u1ebfn th\u1ee9c kh\u00e1c t\u1ea1i \u0111\u1ecba ch\u1ec9: Vietlearn.org\/<\/p>\n\n\n\n

Xem th\u00eam c\u00e1c b\u00e0i vi\u1ebft c\u00f3 n\u1ed9i dung c\u00f9ng ch\u1ee7 \u0111\u1ec1<\/p><\/blockquote>\n\n\n\n

Glucoz\u01a1 l\u00e0 g\u00ec? tr\u1ea1ng th\u00e1i t\u1ef1 nhi\u00ean c\u1ee7a Glucoz\u01a1 \u2013 Vietlearn<\/p>\n\n\n\n

Ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc l\u00e0 g\u00ec? C\u00f3 m\u1ea5y lo\u1ea1i ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc \u2013 Vietlearn<\/p>\n\n\n\n

C\u00f4ng th\u1ee9c v\u00e0 t\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a R\u01b0\u1ee3u Etylic \u2013 Topp<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"

Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn \u0110\u1ec3 c\u00f3 th\u1ec3 l\u00e0m c\u00e1c b\u00e0i t\u1eadp li\u00ean quan \u0111\u1ebfn ch\u1ee7 \u0111\u1ec1 ancol, ch\u00fang ta c\u1ea7n ph\u1ea3i bi\u1ebft ancol l\u00e0 g\u00ec, ancol etylic l\u00e0 g\u00ec. \u0110\u1ed3ng th\u1eddi t\u00ecm hi\u1ec3u v\u1ec1 t\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u0169ng nh\u01b0 h\u00f3a h\u1ecdc c\u1ee7a ch\u00fang. Trong b\u00e0i vi\u1ebft n\u00e0y, Vietlearn s\u1ebd gi\u00fap b\u1ea1n h\u1ec7 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[8],"tags":[],"class_list":["post-1053","post","type-post","status-publish","format-standard","hentry","category-hoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/1053","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=1053"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/1053\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=1053"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=1053"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=1053"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}