B\u00e0i 1 (trang 32 sgk H\u00f3a 12 n\u00e2ng cao):\u00a0Ph\u00e1t bi\u1ec3u n\u00e0o sau \u0111\u00e2y kh\u00f4ng \u0111\u00fang?<\/strong><\/p>\n

A. Glucoz\u01a1 v\u00e0 fructoz\u01a1 l\u00e0 \u0111\u1ed3ng ph\u00e2n c\u1ea5u t\u1ea1o c\u1ee7a nhau<\/p>\n

B. C\u00f3 th\u1ec3 ph\u00e2n bi\u1ec7t glucoz\u01a1 v\u00e0 fructoz\u01a1 b\u1eb1ng ph\u1ea3n \u1ee9ng tr\u00e1ng b\u1ea1c<\/p>\n

C. Trong dung d\u1ecbch, glucoz\u01a1 t\u1ed3n t\u1ea1i \u1edf d\u1ea1ng m\u1ea1ch v\u00f2ng \u01b0u ti\u00ean h\u01a1n d\u1ea1ng m\u1ea1ch h\u1edf<\/p>\n

D. Metyl \u03b1-glucozit kh\u00f4ng th\u1ec3 chuy\u1ec3n sang d\u1ea1ng m\u1ea1ch h\u1edf<\/p>\n

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

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

B\u00e0i 2 (trang 32 sgk H\u00f3a 12 n\u00e2ng cao):\u00a0Cho c\u00e1c dung d\u1ecbch : glucozo, glixerol, axit axetic, etanol. Thu\u1ed1c th\u1eed n\u00e0o sau \u0111\u00e2y \u0111\u1ec3 nh\u1eadn bi\u1ebft \u0111\u01b0\u1ee3c c\u00e1c dung d\u1ecbch tr\u00ean?<\/strong><\/p>\n

A. Cu(OH)_{2<\/sub>\u00a0trong m\u00f4i tr\u01b0\u1eddng ki\u1ec1m<\/p>\n}

B. [Ag(NH_{3<\/sub>)2<\/sub>]OH<\/p>\n}

C. Na kim lo\u1ea1i<\/p>\n

D. N\u01b0\u1edbc brom<\/p>\n

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

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

B\u00e0i 3 (trang 32 sgk H\u00f3a 12 n\u00e2ng cao):\u00a0a) Cacbohidrat l\u00e0 g\u00ec? C\u00f3 m\u1ea5y lo\u1ea1i cacbohidrat quan tr\u1ecdng? b) N\u00eau \u0111\u1ecbnh ngh\u0129a t\u1eebng lo\u1ea1i cacbohidrat v\u00e0 l\u1ea5y th\u00ed d\u1ee5 minh h\u1ecda ?<\/strong><\/p>\n

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

Cacbonhi\u0111rat l\u00e0 nh\u1eefng h\u1ee3p ch\u1ea5t h\u1eefu c\u01a1 t\u1ea1p ch\u1ee9c th\u01b0\u1eddng c\u00f3 c\u00f4ng th\u1ee9c chung l\u00e0 C_{n<\/sub>(H2<\/sub>O)m<\/sub><\/p>\n}

C\u00f3 ba lo\u1ea1i cacbohi\u0111rat:<\/p>\n

Monosaccarit: L\u00e0 nh\u00f3m cacbohi\u0111rat \u0111\u01a1n gi\u1ea3n nh\u1ea5t kh\u00f4ng th\u1ec3 th\u1ee7y ph\u00e2n \u0111\u01b0\u1ee3c. Th\u00ed d\u1ee5: glucoz\u01a1, fructoz\u01a1<\/p>\n

\u0110isaccarit: L\u00e0 nh\u00f3m cacbohi\u0111rat m\u00e0 khi th\u1ee7y ph\u00e2n sinh ra 2 ph\u00e2n t\u1eed monosaccarit. Th\u00ed d\u1ee5: saccaroz\u01a1, mantoz\u01a1<\/p>\n

Polisaccarit: L\u00e0 nh\u00f3m cacbohi\u0111rat ph\u1ee9c t\u1ea1p m\u00e0 khi th\u1ee7y ph\u00e2n \u0111\u1ebfn c\u00f9ng sinh ra nhi\u1ec1u ph\u00e2n t\u1eed monosaccarit. Th\u00ed d\u1ee5: tinh b\u1ed9t, xenluloz\u01a1<\/p>\n

B\u00e0i 4 (trang 32 sgk H\u00f3a 12 n\u00e2ng cao):\u00a0a) H\u00e3y vi\u1ebft c\u00f4ng th\u1ee9c d\u1ea1ng m\u1ea1ch h\u1edf c\u1ee7a glucozo v\u00e0 nh\u1eadn x\u00e9t v\u1ec1 c\u00e1c nh\u00f3m ch\u1ee9c c\u1ee7a n\u00f3(t\u00ean nh\u00f3m ch\u1ee9c, s\u1ed1 l\u01b0\u1ee3ng, b\u1eadc n\u1ebfu c\u00f3). Nh\u1eefng th\u00ed nghi\u1ec7m n\u00e0o ch\u1ee9ng minh \u0111\u01b0\u1ee3c c\u1ea5u t\u1ea1o d\u1ea1ng m\u1ea1ch h\u1edf c\u1ee7a glucozo?<\/strong><\/p>\n

b) H\u00e3y vi\u1ebft c\u00f4ng th\u1ee9c d\u1ea1ng m\u1ea1ch v\u00f2ng c\u1ee7a glucozo v\u00e0 nh\u1eadn x\u00e9t v\u1ec1 c\u00e1c nh\u00f3m ch\u1ee9c c\u1ee7a n\u00f3 (t\u00ean nh\u00f3m ch\u1ee9c, s\u1ed1 l\u01b0\u1ee3ng , b\u1eadc v\u00e0 v\u1ecb tr\u00ed t\u01b0\u01a1ng \u0111\u1ed1i trong kh\u00f4ng gian). Nh\u1eefng th\u00ed nghi\u1ec7m n\u00e0o ch\u1ee9ng minh \u0111\u01b0\u1ee3c glucozo t\u1ed3n t\u1ea1i \u1edf d\u1ea1ng m\u1ea1ch v\u00f2ng?<\/strong><\/p>\n

c)trong dung d\u1ecbch, glucozo t\u1ed3n t\u1ea1i \u1edf nh\u1eefng d\u1ea1ng n\u00e0o(vi\u1ebft c\u00f4ng th\u1ee9c v\u00e0 g\u1ecdi t\u00ean?<\/strong><\/p>\n

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

C\u00f4ng th\u1ee9c d\u1ea1ng m\u1ea1ch h\u1edf c\u1ee7a glucozo<\/p>\n

CH_{2<\/sub>OH-CHOH-CHOH-CHOH-CHOH-CH=O<\/p>\n}

C\u00f4ng th\u1ee9c d\u1ea1ng m\u1ea1ch v\u00f2ng c\u1ee7a glucozo<\/p>\n

<\/p>\n

B\u00e0i 5 (trang 33 sgk H\u00f3a 12 n\u00e2ng cao):\u00a0H\u00e3y vi\u1ebft ph\u01b0\u01a1ng tr\u00ecnh h\u00f3a h\u1ecdc c\u1ee7a c\u00e1c ph\u1ea3n \u1ee9ng sau (n\u1ebfu c\u00f3):<\/strong><\/p>\n

a.Glucoz\u01a1 t\u00e1c d\u1ee5ng v\u1edbi n\u01b0\u1edbc brom<\/p>\n

b.Fructoz\u01a1 + H_{2<\/sub>\u00a0\u2192 (Ni,t^{o<\/sup>)<\/p>\n}}

c. Fructoz\u01a1 + [Ag(NH_{3<\/sub>)2<\/sub>]OH \u2192<\/p>\n}

d. Glucoz\u01a1 + [Ag(NH_{3<\/sub>)2<\/sub>]OH \u2192<\/p>\n}

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

a. CH_{2<\/sub>OH-(CHOH)4<\/sub>-CHO + Br2<\/sub>\u00a0+ H2<\/sub>O \u2192 CH2<\/sub>OH \u2013 (CHOH)4<\/sub>-COOH + 2HBr<\/p>\n}

b. Fructoz\u01a1 t\u00e1c d\u1ee5ng v\u1edbi H_{2<\/sub>, x\u00fac t\u00e1c Ni<\/p>\n}

<\/p>\n

c. Fructoz\u01a1 kh\u00f4ng t\u00e1c d\u1ee5ng v\u1edbi [Ag(NH_{3<\/sub>)2<\/sub>]OH<\/p>\n}

d. Glucoz\u01a1 t\u00e1c d\u1ee5ng v\u1edbi [Ag(NH_{3<\/sub>)2<\/sub>]OH<\/p>\n}

<\/p>\n

B\u00e0i 6 (trang 33 sgk H\u00f3a 12 n\u00e2ng cao):\u00a0Cho 200 ml dung d\u1ecbch glucozo ph\u1ea3n \u1ee9ng ho\u00e0n to\u00e0n v\u1edbi dung d\u1ecbch AgNO_{3<\/sub>\u00a0trong NH3<\/sub>\u00a0thu \u0111\u01b0\u1ee3c 10,8 gam b\u1ea1c. T\u00ednh n\u1ed3ng \u0111\u1ed9 mol c\u1ee7a glucozo \u0111\u00e3 d\u00f9ng<\/strong><\/p>\n}

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

n_{Ag<\/sub>\u00a0= 10,8 : 108 = 0,1 mol<\/p>\n}

<\/p>\n

Theo ph\u01b0\u01a1ng tr\u00ecnh : n_{glucoz\u01a1<\/sub>\u00a0= 1\/2nAg<\/sub>\u00a0= 0,05 mol<\/p>\n}

\u2192C_{Mglucozo<\/sub>\u00a0= 0,05 : 0,2 = 0,25 M<\/p>\n}

B\u00e0i 7 (trang 33 sgk H\u00f3a 12 n\u00e2ng cao):\u00a0\u0110un n\u00f3ng dung d\u1ecbch ch\u1ee9a 18 gam glucozo v\u1edbi m\u1ed9t l\u01b0\u1ee3ng v\u1eeba \u0111\u1ee7 AgNO_{3<\/sub>\u00a0trong NH3<\/sub>\u00a0th\u1ea5y Ag t\u00e1ch ra. T\u00ednh l\u01b0\u1ee3ng Ag thu \u0111\u01b0\u1ee3c v\u00e0 kh\u1ed1i l\u01b0\u1ee3ng AgNO3<\/sub>\u00a0c\u1ea7n d\u00f9ng, bi\u1ebft r\u1eb1ng c\u00e1c ph\u1ea3n \u1ee9ng x\u1ea3y ra ho\u00e0n to\u00e0n<\/strong><\/p>\n}

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

Ph\u01b0\u01a1ng tr\u00ecnh ph\u1ea3n \u1ee9ng :<\/p>\n

AgNO_{3<\/sub>\u00a0+ 3NH3<\/sub>\u00a0+ H2<\/sub>O \u2192 [Ag(NH3<\/sub>)2<\/sub>]OH + NH4<\/sub>NO3<\/sub><\/p>\n}

<\/p>\n

S\u1ed1 mol glucozo n_{C6H12O6<\/sub>\u00a0= 18 : 180 = 0,1 mol<\/p>\n}

n_{Ag<\/sub>\u00a0= 2nC6H12O6<\/sub>\u00a0= 0,2 mol = nAgNO3<\/sub><\/p>\n}

kh\u1ed1i l\u01b0\u1ee3ng b\u1ea1c thu \u0111\u01b0\u1ee3c m_{Ag<\/sub>\u00a0= 0,2.108 = 21,6 (g)<\/p>\n}

Ph\u1ea3n \u1ee9ng l\u00ean men : C_{6<\/sub>H12<\/sub>O6<\/sub>\u00a0^{l\u00ean men<\/sup>\u2192 2C2<\/sub>H5<\/sub>OH + 2CO2<\/sub>\u00a0(1)<\/p>\n}}

Th\u1ec3 t\u00edch C_{2<\/sub>H5<\/sub>OH trong c\u1ed3n 96o l\u00e0 96:100.60 = 57,6 (l\u00edt)<\/p>\n}

D_{C2H5OH<\/sub>\u00a0= 0,789 (g\/ml) = 0,789 kg\/l\u00edt<\/p>\n}

V\u1eady kh\u1ed1i l\u01b0\u1ee3ng etanol nguy\u00ean ch\u1ea5t l\u00e0 m = 57,6.0,789 (kg)<\/p>\n

Theo (1) c\u1ee9 180 (g) glucozo \u2192 2.46 (g) etanol<\/p>\n

86,92 kg <- 57,6.0,789 (kg) etanol<\/p>\n

Do H = 80% \u2192 kh\u1ed1i l\u01b0\u1ee3ng glucozo c\u00f3 trong 1m^{3<\/sup>\u00a0n\u01b0\u1edbc r\u1ec9 \u0111\u01b0\u1eddng l\u00e0 :<\/p>\n}

86,92.100:80 = 108,7 (kg)<\/p>\n

kh\u1ed1i l\u01b0\u1ee3ng b\u1ea1c nitrat c\u1ea7n d\u00f9ng m_{AgNO3<\/sub>\u00a0= 0,2.170 = 34 (g)<\/p>\n}

B\u00e0i 8 (trang 33 sgk H\u00f3a 12 n\u00e2ng cao):\u00a0Cho l\u00ean men 1m^{3<\/sup>\u00a0ri \u0111\u01b0\u1eddng, sau \u0111\u00f3 ch\u01b0ng c\u1ea5t thu \u0111\u01b0\u1ee3c 60 l\u00edt c\u1ed3n 96o. T\u00ednh kh\u1ed1i l\u01b0\u1ee3ng glucozo c\u00f3 trong 1m3<\/sup>\u00a0n\u01b0\u1edbc r\u1ec9 \u0111\u01b0\u1eddng glucozo tr\u00ean, bi\u1ebft r\u1eb1ng kh\u1ed1i l\u01b0\u1ee3ng ri\u00eang c\u1ee7a ancol etylic b\u1eb1ng 0,789 g\/ml \u1edf 20oC v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a qu\u00e1 tr\u00ecnh l\u00ean men \u0111\u1ea1t 80%<\/strong><\/p>\n}

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

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

B\u00e0i 1 (trang 32 sgk H\u00f3a 12 n\u00e2ng cao):\u00a0Ph\u00e1t bi\u1ec3u n\u00e0o sau \u0111\u00e2y kh\u00f4ng \u0111\u00fang? A. Glucoz\u01a1 v\u00e0 fructoz\u01a1 l\u00e0 \u0111\u1ed3ng ph\u00e2n c\u1ea5u t\u1ea1o c\u1ee7a nhau B. C\u00f3 th\u1ec3 ph\u00e2n bi\u1ec7t glucoz\u01a1 v\u00e0 fructoz\u01a1 b\u1eb1ng ph\u1ea3n \u1ee9ng tr\u00e1ng b\u1ea1c C. Trong dung d\u1ecbch, glucoz\u01a1 t\u1ed3n t\u1ea1i \u1edf d\u1ea1ng m\u1ea1ch v\u00f2ng \u01b0u ti\u00ean h\u01a1n d\u1ea1ng m\u1ea1ch […]<\/p>\n","protected":false},"author":3,"featured_media":25451,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[1306],"tags":[1436,1435],"yoast_head":"\n