E{EIcFNG #AN GHAE pn snl rrsel FA{ F{oc LAN Hv MON F{OA HOC {27 tszizol rf vA Dg: +oo Cf;u lt- Fiqp ch6t CrzHrr c6 c6u tpo g6m 6 nh6m {H: rlinh vdi 6 nguy€rr tr? C ciia nhAn benzen. MQnh de kh6ng dirle: !. I{gp chdt tr6n c6 tn6 trec dgng vrri Br6m khi cd bQt sit. Cfiu 2- Mdi Ong nghiQm chria mQt trong c6c dung dich sau: KI; BaCl2; NazCOs; NazSO+; (NHq)zSO+; KOFI; NaOH . Khdng dirng thdm thu6c thl ndo c6 thA nhOn tlugc: D- 5 chdt. HD: LQp hdng ,vi KOH vd NaOH gi6ng nhau nAn chi nhdn &iqc 5 chdt Cdu 3- Tir a t6n qudng manhetit chfta 80Yo FeaO+ c6 tnd eiAu chii tlugc 800 t6n gang chria 5o/o C. Cho bitit trong qu6 trinh sdn xudt lugng sit bi hao hqt l%. Vay a c6 giittri : C- 1325,16 t6n. .HD : Kkiii ltgn7 Fe c6 trong 800 ttin gang (800.95)/100 + 760 t. Lryng siit thqc tii cin: 06A.100)/99 -+ 767,68 t . Cri lmol FesOt + 3 mol Fe hay c* 232 tiin FetO+ +168 tdn Fe, vQy mutin cd 767,68 #n Fe c,in 1060,13 tdn Fesot hay 1060,13.1A0/80: 1325,16#n. CAu 4- C6 cfrc ph6t bi6u sau: 1-Trong phdn fmg oxy h6a khri, NH3 chi d6ng vai trd ctr6t ttui. Z- Vtu6i nitrat trong nudc c6 tinh Oxy h6a mpnh. l- TAt ch cdc mu6i nitrat dAu d6 tan trong nu6c. <t- Mudi nitrat trong mOi truong axit c6 tfnh oxy h6a mqnh. Phat bi0u dring ld: li- 1.,3, 4 C6u 5- Cho cdc cdng thrtc sau: X- -[-].lH- (CH2)6-CO-I-" Y- -[-NH- (CHz)s- CO-]-" z- -bco- (cH2)4-co- NH- (CHz)o-NH-l-" To'nilon img vdi cdng thrlc: A- Ce X,YrZ CAu 6- Tinh linh dQng cria H hong nh6m -OH , ddp 6n dring ld: C. CH"-C.f[,CF[: < CH3OH < HzO < CH:COOH. I OFI CAu 7- Hda tan hodn todn m gam h6n hqp 3 6xit sft vdo dung dich HCI thu duo. c dung dich X. CO can Cung dich X thu duo. c m1 gam h6n hqp 2 mu6i c6 tj lQ mol 1:1. NOu sgc khi clo du vdLo dung dich X, sau c16 cd can thu ilu,o. c ftn1+1,42\ gam mu5i khan. m c6 gi6 tri : B- 6,08 gam IlD. Cir t mol FeClz + FeCls khiit lryng tdng th€m 35,5 gant, ,szry ra sii mol FeClz : sd mol FeCl: : I ,42/35,5 - 0,A4 mol mp rTtFect2 * ntFects: I I,58 gam, trong dd mpa: 56.2.0,01 : 4,48 ganz yd tttL-1: 35,5.5.0,04 7, ! gam, m(t khdc ta thiiy c{r lmol 02- tuong drong vhi 2 mol Cl- . Sr,it, rc sri mol d : 7,1/35,5.2 : 0,lmol. Vqy sii gant citc 6xtt biing: m: mFe + mo: 4,48 : 0,1 .16 : 6,08 gatn. CAu 8- MQt cdn c62 ffiacdn Ao B. Tr€n cilZ ilacdn c6 2 c6c thriy tinh kh6i lugng nhu nhau chria cirng mQt lu-ong dung dich HCI n6ng d0 nhu nhau (cAn thlng bing). Th€m vdo c6c A mQt mi6ng Zn c6 khdi luo.ng m gam, cdc B thdm 1 miting Mg cfing c6 khOi lugng m gam, de phan img hodn todn : C- Eia A cd th6 chim xu6ng ho{c nim ngang vfi ilia B. CAu 9- D6 s6n xu6t phdn KCI nguoi tatich KCI kh6i NaCl trong qu{ng xinvinhit c6 cOng thirc: KCl.NaCl dua vio su kh6c nhau gita: E- EQ tan trong nurfc theo nhi$t tI$. Cflu 10- Phucrng ph6p di6u ch6 etanol nio sau d0y chi dtng trong phdng thf nghiOrn: C- Th&y phAn dAn sudt halozen trong mOi truang ki6m. cau 11- cho c6c ch6t: 1t; czHscl , (2) czHsoNoz, (3) cH3No2 (a) Tri nitro glyxerin (5) tri nitro toluene (6) (C2H5O)2O (7) (C2H5O)2SO2 Nhirng ch6t este ld: B- (1) {2) {4) {7). HD: Este td sdn phiim thu dwqc khi cho axit fu6 co hay hftu co ) tdc dqtng vdi rwqu CzHsOH + HCI * CzHsCl + HzO. C2H5OH + HNO. < ) C2H5ONO2 + H2O. 2C2H5OH t' HzSOq a + (CzHsOlfOz + ?H:O. 1 I C:Hs(OFI): + 3HNOt A+ Cr-#;(ONO2)r + 3HzO' CAU 12 Clo gif vai trd li chAt oxi ho6-hong cdc phin img: i)' I, ?,3,'{,5,6' c6u 13- MQt loai rugu c6 kh6i luang ri€ng 0,92 g/ml thi d-0-rugu cria n6 li: *3- 4{}'()' t{D: D0 nrqu ld ?(, theo Y' Ap dang cdng th*c dadng chdo, ta c6: fItO (tl:I) =\ A.g2 0,12 : 6 CzIlsOIl (d-0,5) \0,08 -+ q. Vqv dp ruquIq 4q%-, Ca" i;- H6n hgp X !O* 2 hydrocacbon m3ch ho c6 fj' nr6i troi so vdi hydro ld 11,25 ' Cho X di chQm qua dung dich nudc iro* Au, sau khi pnan ,ring xiy raiodn todn kh6i lugng binh tdng th6m 0,84 gam' X phdi c6 hydrocacbon: Ii- ProPen. ]-{D: L{ : 11,25. 2 : 22,5. Trong 2 hydrocacbon phdi c6 cHt - yhai InqnT cfia cHq : (l '792 ' 22,5)/22,4- 0,84:b,giio",,railotcuo:a,g6/i6:0,a6vasiimolc*ahydrocacboncdnlqild0'02 mol ' + A,I: 0,84/0,02 : 42 : CsHa NOs thu dugc 6,72 cf,u 15- MQt loai d6 chira cacor vd MsCOr dem hda tan bdng 190gl9Yig-f*h H lit khi coz (dkrc). Sau ph6n ungphni a,lng ioo gam fung oichNaoH 8% de trung hda HNOr du' dung dich rlem c6 cpn thu iul. c 63 ga"m rnu5i tfr*. COng thtciria lopi d6 d6 ld: c- cacor'2Mgco3' HD: C6ng thftc lit aCaC:Os.bMgCOs aCaCoj.btuigC73+Z(o+b)HNOs-' +aCaNO:)r+bMg(t'{_Ot12+(a+b)CO2+(a+b)Hd) HNOs + NaOH +NaNgs + H2O. nmto:: 2i*t: 0,6iot. nur,iosa: ltNaNo3: 0,2mol sau khi c6 cqn '*',iirA,r'iil;-simCaNo)r,-Msfibi,raiiwo,. Q6a-0,3a)/(a+b)+ (118'0,3b)/(a+b) + 85'0'2 63: a: 2b Suy ra a :] ; b : 2 va.c6ng tfu}c cila dd d6 ld CaCO j.2MgCo j c6u t6- Eun nong *Oirra. hqp ;o; t'i gam Ci{3cooH v! 4-,6 gam HCooH v6i.18,4 gam czHsoH c6 m{t cria HzSO+ dac, sau phan rmg thu duic h6n hqp este^v:1i 8,8 gam CH3COOC2Hs vd 5,55 gam HCOOCzHs. Hi-eu r;il;;tmtJ,i"g vdiz axit iHrCooU vd HCooH lAn lust ld: B- 50'rh-75'/' HD: n5'sj1;ooH : 0,2mol ; nHCooH: 0,1 mol ; ncznsou: a'4 mol' Vi sii mol r$ou > sii mol axil nan lti{u surir ttnh rheo axit: HiQu suiit v6i CA,Cfjoi'zHs - 8,8.I00%i8B-0,2 : 50%; Hi€u sudt diSt v1t HC}}CzI{s : 5,55.100%/74-A,l: 75%' :. ;;;i?:;5t .iiv troan ;63dn 6,72lit (dktc) mQt h5n hqp.ggm CzHzvitCzFI+ r6i cho todn bQ sin phdm ch6y vdo dung dich nudc v6i trong du, sau phnn ung kh6i lugng binh nudc vOi tdng thOm 33,6 gam vd c6 m gam t<Ct ma. rn c6 gi6 tri ld: D- 60 garn' HIi : Gpi x vd y ld si| mo! CzHz vd CzHt ta cti: x + y : 0'3 2CtHz + 5Oz -"+4COz + 2HzO CzHo-+ 3 Oi 2CQ2 + 2H2O ta c6: 2.(x+y).44 + (x+21.18 : 33'6' Gidi hQ pt x: 0,1 vt\1; : 0,1 tA i"i COt: 2x + 2y : 0,6 mol nAn:iyol CaCOs - 0'6 vit m: 60 gan' C1u 18- Dung dich A chiia 0,01 mol pr6or), ua 0,15 mol HCI c6 khd ning hda tan t5i da m gam Cu (tpo ra khi NO duy nh6t). m bEng: B- 3,2 gam' HD. Cu + 2Fi3* TFtt- * c'u2* 0,00s a, t 3Cu + 8rr + 2NO; -+ 3Cu2' + 2NO + 4HzO 3 mol I nrcl 2 mol Xntol0,l50,03lI+(tuvdx:(3'x'0'03)/2:0'A$mol' Vq' sii gam Cu phdn *ng : (0,045 + 0,005)64 : 3,2 gam' Cffu 19- Nhiet phdn hodn todn 20 m6t h'6n fi;ilUgCO!, CaCOg vdBaCOg thu dugc chat khi e' d;;idp il ij; dung dich nu6c v6i trong'ttliouq. io ggo tet tria tring vd dung dich C, dun n6ng dLrng dlch C lai thu duq? e;;kg, ttr Yotittoi toqttg cria MgCo: c6 gi6 tri ld : D- khoing 5?'5- 86,'15610. .__+ IvtO + COz HD: Goi cong th*c cfia 3 muiii ban ddu ld IutCO:' ]ulCO3 CO2 + Ca(OH)z + CaCOs + H2O 2CO2 + Ca(OH)2 '-+ Ca(HCO:): Ca{HCOs)z '+ CaCOs + COz+'H2O nCOt: A,1 + 0.06x2 : 0,22 moL Goi sti trtol AigCO:,CaC) j, BaCO: trong I\7gctnt h|n hpp tin taqt biing x, y, z ta c6: 81x+ 10fi,+ 1972:100 xty*z:,022x5:1,.1 -, y z- 1,1 -z v-it 100< (1ATv+ l97z),/11t+z)= 01A-B4x)i(l,t-x) <. 197. Suvra 52,5!%<B4x<86,75%. CSu 20- Cho 0,25 mol CuO tan hiit trong dung dich HzSOc 10% vta dir vd dun n6ng, sau phAn img ldrn lanh dung dich d6n 10oC. Lugng tinh thd CuSO+.SHzO t6ch ra kh6i dung dich ld m gam, bi6t dO tan cria CuSO+ d 10"C bingI7,4 gam, m nh0n giri tri: A-38,5 gam. " fID : nCu) : nCuS)+: A,25 mol : nt CtrSOt - 0,25t160 : 40 gam nH2SOa - n{)uO : 0,25 : trttdi lwqn7 dung dich Hzfiot 20% cdn ; 0,25x98xlAA/20 : 122,5 ganl. t{hi|i bqng dung dich CuSO+ ld: 122,5 + 0,25x84'- 142,5 gam. DQ tan cfia CuSO,t 6' l0"C ld 17.4 gam t{rc ld cir 100 gim I{2O hdd ten duqc 17,4 gum CuSOa tqo t'a rhmg rlich bdo hda. Gpi a lc\ tii go* Ct$O,t.5HzO tirch ra thi s:ii gam CuSO,t tdch ra Id l60a/250 vd sii garn HzO trir:h theo ld 90c/ 250 ta cd (40- /60a/25Q : (142,5-40-90ai250) 17,4: 100. snyra (I:38,5 gam. CAu 21- 56 6xy h6a cria S trong phdn tu (NH+)zSzOs ld: A. +6. Cim22- D€ ph6n biQt phenol va iuqu benzylic ta phai dDng thu6c thti C- Cin 2 vi 3 trong s6: i - Na. 2- dung dich NaOH. 3- dung dich nu6c brom. 4- dung dich nu6c v6i trong. Cfiu 23- O6t chay hodn todn 2 hydrocacbon c6 cilng s6 mol vd cirng s6 nguy€n tri C trong phdn tft thu cluo-c 1,76 garn COz vd 0,9 gam I{zO. Hai hydrocacbon d6 ld: A- Cztlo vi Cz}I+. HD: tr/i nHzO > n(loz n€n chi c6 I trudng h.op xay ra: ho(c I ankanvd I anken Ndu ctt 2 an kan thi chi ld I chdt, ndu I ankan vd l ctn kin thi kht diit sd cd cimg sii mol HzO vit COz. Gpi ntd sii rcgtryLn t* C vd sii mol ld a. Ta c6: Cnlf:,1t + Ot + nCOz + futI)tI2O CnI'Iz, + Ot + nCOz ",' nH20 an + an : 0,04 -+ an : 0,02 e(n+I) + an:0,A5 -+arl*ct * an: 0,AS +a:0,0lvdn:2 Cfra24^ Cho hai mu6i X, Y tho6 mdn eli€u kiQn sau: X + Y ) khOng xiry ru phin img. X + Cu -> kh6ng x&y ra phin ung. Y + Cu + khOng xiy ra phdn img. X + Y * Cu + xiy ra phin img. X vd Y ld mu6i : A. NaNOr vh NaI{SO+. Cfru 25- Cho c6c ch6t: CaHleO, CaHeCl, C+Hro, CaHlrN. SO d6ng phAn cria c6c chAt giSm theo thrl qu: C" CqFtrrrN" CaFIr*Oo C+HcClo C+Hro. CAu 26- Cdc cdukhdng d!nh: ll Chhthiru co ndo c6 khd ndng cQng du-o. c hitlro sE cQng iluo. c dung dich brom. Ill Chlthiru co ndo c6 khi n[ng tao dung dich xanh vdi Cu(OH)2 s€ tac dpng tlucr. c vdi natri. S. I sai,ll dr&ng. Cdru27- Phdt bi€u elring: C. R.wqru thorn IA chAt cd nh6m hidroxyl gf,n tr6n m4ch nhdnh cria hidrocacbon tho'an" Cflu 28- Dung dich X ld h6n hgrp cria rugu etylic voi HzO. Cho 20,2 gam X t6c dr;ng v6i Na dr.r thu du-o. c 5,6 lit H2 (dktc). nitit ttrOi lugng ri€ng cria rugu la 0,8 g/ml vd cria H2O la I g/ml. EQ cua rugu X ld: A- 92.74". .HD: Goi x vd y td sii rnol CzHsOH vd H2O nong hdn hqp X, ta c6: x-rl:0'5 16x + l9y : 20,2 gidi ra ta du.oc x: 0,4 vd x : 0,1 tft uzo: 1,8 -+Vuz6: 1,8 mt vd m c'zttsoH: 0,4.46: 18,4 "-+Yc:zusou 1B,4i0,8 : 23ml Y,$y dO ruqu ld 23.1\aiQ3't I ,8) : 92,74". Cffu 29- Khi d6t ch6y hodn todn mQt lugng polyme X ( t4o thanh do qu6 trinh d6ng trDng hgp dimeryl buta-1,3 dien vd acrylonitrin) vdi luqng 6xy vila dri t4o thdnh mQt h6n hqp khi o diAu kign nhiQt d0 vd 6p suAt x6c tllnh ch&a 57,69Yo COz v0 th6 tich cdn lpi ld hoi nu6c vd kh( Nz. Ty lQ mol cta 2 monorne tusng img trong X ld: A- l:3 IID: Sanphdm ld [x(CII2- C: C- CHr).yrCfIz-CH-J, li CHS CH: I CN khi n : 1 ta c6:C6ng thtkc nguyAn xCoLIto'yCstl3ll' phitn *ng chay: xCaf{to.tCs-I13M + Oi -*(6x+3y)CO2+ $x-3i2fl112.Q + 1/2N2 ria ii "n' i,r'i hi't na6c vd N zt d I 0 0- 5 i, 69 - 42' 3 t' l['a cd : (6x+3il/(5x+3i21'+v/2) 57,69/ 42,31 + x : y : 1: j Cffu 30- D6t n6ng *d;'6^;; sd; ;0 gam bQt Fe r;a 3-0 g-?T b6t luu huimh trong tlidu kien khdng co kh6ng khi dc pnan .mg .av J i*." toan ihu du,o. c ch6t ran X. Hoa tan chf,t ran X bing dung dich HCI du thu dugc dung dich y-va [ni z, d6tcnay noan toan z "an toi ttri6u v lit khong khf o dktc (chira ii5 oz vC ttr6 tich). Gi5 tricria V ld: C- 165 lit' I{D: nFe > nfi n€n ,sau phdn *ng chay s hdt, ltet,qud cuiii ci.tng ld Fe vd s nhadng e cdn oxy nhSn e: Fe - 2e : F'e*2 Sii mol e md Fe nhtdng 60'2/56' ! . S - 4e : To Sis mol e mir s nhudng SO.iiSZ gpix k\ t2yolOz thi s6 mol e md Oznhdnlir 4x' 6A,2/56 + 30.4/32 : 4x '-+ x = 1,473' mol viti'tol'- t''1f 52'22'4'5 : 165 lit CAu 31- MQt lopi nu6c cimg c6 chira 0,0;'^;;*; ; 6,oo n,otJvJ; 0,03 mol Mg'*; 0,01 mol NH+.; 0,02 mol SO+2-; 0,1 I mol HbOl- va * *ol Cft- C- O,tiZ mol vh nu6c cr?ng t4* th&i' ( x nhfln gi5 tri 0,02 mol vd nudc ld nudc cimg t4m thoi') "'" ii,i'i tl mot HCo3- > 2-sd mal M! " vd oa'n Ciu 32- MQt h6n hqp gdmNzi Hz vi NH. ;; * ryi hgr ;o^vdi hydro Uang 8t cho h6n hqp ndv di qua dung dich Hzso+ oaJtf;ilrre ti"r, "on tai mot,-r*. rr,ann pnan % theo v cfia c6c khftucrng img trong nu"Iff 'fr; nu, : #;1Y';?.;/;'ni!,';,so,t ditc chi c6 NH: rdc dqng. coi m9i tu.sng-phdn.,.*"'*ns binh crta H2 rtd N2 lil lvt, ta c6 At{ + I7)i2: 8 -+ M :!5''Suy ra % crta Hz : % c*a Nt vi AI bdng trung b]yh 11ns . x L^* L^: r-:* r^oi ',a im 30% vc klroi luo-ng) vdo 50ml dung Ceu 3i-lir gam h6n hqp hai kim loai Fe, Cu (tronq d6 Fe chi( ffi *,;;;;;;;t;tt (d: 1,38 ;""fit,il'"0"g,-r.ryiv dou hdn hqp t6i e6c phan img hodn todn thu duoc rdn A "an'nang ti,z5 m gail, a"ng oi.r., g ui'o,lz tit tr6n hqp khiNoz vd No (dktc)' co cqn J.*g oi.rt e thi thu auqi g- 35,1gam mu6i khan' I'ID : Khiit luqng Fe : 0,3m (g); khdi t"q'i-'i' l: 0'75 m(g) SuTt ra luong Fe phdnil'ng: 0'25 m > Fe du : cu chra phdn wng. Dwng dich B chtita FeNOs) z, bh6ng ct5 FeNOs) j vd ctt(Nos) z lthdnhwkhi = 6,72/22,4: 0,3 mol sd mot HNot: t9 ]':9^u' =s,6e (rnot) 100.63 Fe __) ps2* + 2e NO3' + 3e -)NO NOj'+e + NOz 56 mal Noi tao rtuiii : 0,69 - 0,3 : 0,i9 (mol). Kltdi tirqng FeNos)t: |'0,:lts 6+62'2)= 35'1(g) iru.il;il;Jffii:r il, sd oxi ho6 cria cdc nguy.n t0 c6 th. thay d6i lrgqc r<ngns thav d.i. 2) Trong phan ung rG .6'"*i rt"a cua # ngi'yen't6 ": rlC thay d6i ho4ckh6ng.thay tl6i' 3) rrong prran.in! il;";uli,';5;;il"6 Ju?" neulcllq :::ii:1il-i9i hoac khong thav ti6i' +; fron! bttan ting iro6 hqp, s9 oxi ho6 cria c6c nguy€n t9 khonu tnav cor' 5) rrong phan ung trao d6i, sr5 oxi h"i;;;;i" "i"t9" :g:-: ttti"j oqi hopc khong thav d6i' 6) Trong phan ung il ;6i so oxi ho6 cria c6c nguy€n 1o 51rons thay t10i' 7) Trong phen ung ;hq ;5;;t h;a .'it-t* nguvci to luon thav tt6i' ' t'lttung ciu thing lh : I] 1,3,6 r1' Cfru 35- Nfr6g"rt6t ra"Aong phln c6u tao crla nhau: C- 1 vi 4; 3 vir 7' cf;u 36_ Cho bi6t 0,g5 gam MnOz kh# d;ft; tac dimg vi:a dri vdi 0,855 garn axit oxalic trong moi trucmg axit sunfuric theo Phin img : MnOz +H2C2Oa + H2SOa -+ MnSO++COzt+HzO Yotqp chdt c6 trong MnO2: B- 13%' HD: nHzCzO4:0,8851gA:rttr4nOz -t m Ir'InOt: 0'885'87i90 : 0'855 gom %tqp ch(it: IaT% - 0,855'Ia0%/0'95: I3% CAU 37- Hydrat h6a 1,56 gam mdt ankin A thr-r duoc andehit B. Trdn B v6i andehit don chric C. ThOm i-12O thdnh 100 ml dung dich D chrla B vd C vdi ndng dQ tdng c6ng lA 0,8M. Thdm tir tir dung dich AgNO3 du trong NH: thu duoc 21,6 gam Ag ktlt tria. Cdng thric ciia B; C vd s6 mol cria B rrd C c6 trong dung dich ld: A. CFITCfIO; ff CF{O 0,(}{r nrol B vri 0,02 mol {1. IID : B td CH3CHO v6i sii mol bing,sii mol cfia CzH:: 1,56i25: 0.06 mot. Sii mol Ag: 0,2 mol ,vuy ra s6 mot A/ do C&CH} tno ra ld 0,12 mol vtt,s6 mol Ag tlo andehit (t tqo ra Id 0,08 mol . Vi c* A,02 mol andehit taq ra 0,08 mol bqc nln theo cdc ddp dn B chi cd thd td 1"1( HO. CAU 38-, Cho m gam mitn cua c6 chtra 60:%;o xelulozry thriy phdn thinh glucozo, sau i16 l6n men thdnh rucvu. D6 thu dugc 1,40 lit rucru 90o thi m bing: Ili 5135,87gam. ( hiQu suAt cria tirng ph6n img chi ttat 8o%.) HD: 77ong ruo.u 90n thi c* I lit rao.u co 0,9 lit Czlldll-i v$t trong 1,40 lit raou cd 1,4.0,9:1,26 lit {:2tJsOH t,d sd mol ruo.u ld 1260.0,8/46:2t,gl ntol. theo hi€u suiit vd 04 xenlulozo trong mim r:aa ta ttnh du.oc sii gam miln ctm phdi dtury: Cd{toOs } C6H12O6 } 2CfisOH (r 260.0,8/46).(t 00/80) (1 a0/80).(1 00i60). I 80 : 5 t 35,87 gant CAu 39- Thriy ph6n mQt este no dcyn chr?c bing dung dich NaOH vla drl thu dury. c mu6i khan cO kh6i lugng phdn trl bing24/29 k*r6i luqng este. Tj't<trOi froi cira este so v6i kh0ng khi bing 4. C0ng thrlc c6u tao cta este ld: I3-CzF[sCO{}CgHr. IfD; Mn,rc: 29.4: 116 M^,ai : 24. II6i29:96 c6ngth*ccrtamuiStld I|-COONa : 96 suy ra R: 29 vd c6ng tfubc crta este ld (lzHsCOOCsHz CAu 40- Chon mQt ddng phdn cta este c6 c6ng thric CqHoO2 thoi mdn diAu kiQn sau:' 1 . CQng hqp tlu-o. c vdi hydro theo fj' lQ I : 1. 2. Phan img chflm vdi NaOH o nhiQt dQ thucrng nhtmg phdn img sE x6y ra nhanh khi clun n6ng. 3. S&n phAm thu tlugc khi cho tac dgng v6i NaOH c6 thO tham gia phin img tn{ng gucrrig. A- CH3-COO-CH:CF{2 Cfiu 41- Cho tlng dung dich ri6ng rd sau : CHrONa, NHNOg; NaHCOT ; NaCl ; CHTCOOK ; NaHSO+ ; CuSOa ; KI ; AgNOr ; CHTCOONH4. SO dung dich c6 mOi trucyng axit ld: E- 4. Ciu 42- Hqp chet X c6 c6ng thr?c phdn tti CrHsCl:. Thriy phAn hodn toin X thu dugc ch6t Y. Y t6c dung ttuo. c vdi Na gini ph6ng I{z vd c6 phin img h6ng guong. X c6 c6ng thrlc c6u t4o ld: .D- C,H2C[-C Frz-CHC tz. CAu 43- Hda tan 4 gam oxit Fe*O, cAn vira di 52,14 ml dung dieh HCI 10% (d:1,05dm1).COng thirc cria Fe*O, li: B- Fe2O3. IID: Fe,O, + 2yH(:l + xFeCI2yn -r yH2O 4/(56x + 161;): 0,15i2y + x/y:21j , x=2 vd ti:3 Cdu 44- H5n hqp X gdm rugu no A vd axit no don chr?c B dAu mpch hcy. Chia 30,6 gam X thdnh 2 phdn bing nhau: PhAn 1 cho phan img vdi Na du thu dugc 4,48lit ll2(dktc). PhAn 2 d0ich6y hodn todn thu dugc 22gam CO2 vd ||/gam H2O. COng thrlc cria axit vd rugu lA :C- CI-I:COOIII vh O[{-CI'r[z-C]-Iz- OFT. ,HD; Goi cong thirc phdn t* cfia rtgu vd axil tdn IwOt ld CnH2n+2-2x(OH)x vd Cmii2mO2 vit ,yii neol ldn ltrqt ld a vd b. T* cdc dtr ki€n ta cd cdc pltaong trinlt: cx+11:6,4 na*mh:0,5 na * s7 + mb : O,fi.GiaihQphwongtrinhtaduqc:2n-t3m: 10. Chicdcdp a:2 vdb:2 ld phil hqp. Tit dd xdc dinh daqc x:2 vd nghiQmphit hgp ld C. Cdu 45- MQt h6n hSp A gAm CzHe; CzH+ vd CrH+. Cho 6,12 gam h6n hq,p A t6c dgng vdi AgNOs,AtrHr du dugc_7,35 gam t6t tua. Mpt kh6c 2,128litA (dktc)phnn ftng vira thi vOi lO ml dung dich nudc brom 1M. Kh6i luqng C2FIa trong h6n hqp A ld: C- 1,12 garn. ItD: Gpi sii mol ctia CzHa, CzHq vd C:Ht tin htqt lit a,b.c. Chi cd CsHa tcic dung vdi AgNO/NH: + c : 7,35/147 : 0,05 mot. Sii mol Brdm phdn *ng vdi cd hdn hgp 0,07(a+b+c)/0,095. Ta cd h€ pt: (l).30a + 2Bh + 40c + 6,12 (2). c : 0,05 (3). b + 2c 0,07(a+b+c)i0,095 Gidi hQ pt ta daqc a: 0,1 vd b: 0,04 vd m CzHt : A,01.28 : I,l2gam. c$u 46- o6t cnay hodn todn m gam mQt amin A bing mOt luong khOng khi vria dir (gin thi€t hong kh6ng khi co tn inetich ld o"y "dn lai id nito) thu duoc 17,6 gam CAz , 12,6 gam H2O vd 69,44 lit Nz (dkrc). F/i c6 gi6 tri ld: !! 9 garu. ' ittl, :'hth sd gam C + sii gam H + sii gam N ,\ii gam C ti C& - 1,8 gam. 56 gam H c6 trong HzO : 1,4 gam' Sd gam N :2,8 g(mt 7'6ng sd : 4,8 * 1,4 + 2'B : 9 gam' Cfru 41-Nung 28,8 gam mu6i natri iria mQt axit fcrn chric vcvi NaOH (CaO xfc t6c) chi thu duo.c 21,2 gam xoda va m6t hidiocacbon duy nh6t. E6ld mu6i cria axit: _D- Cr,fIs-COONa. -HD: R-COONa + NaOH + R-It + Na2COs. Theo dinLt ludt btH: LtNa2Co3- 21,2/1A6: 0,2 tnolvc'r 28,8 + 0,2'40 : 21.2 + m ) m:15,6 lu! : 15,6/0,02 : 78 cong tlirc c*a n6 ld CaHs-COONct Cflu 4g- Cho 18,56 g;m mQt oxit rltia" dung hodn todn vdi dung dich FINO3 thu dugc dung dich X vd 0,224litkhi (dktc) ld mQt oxit cira nito ld san"ptrAm duy nh6t. Cdng thric cfia 2 oxit lAn lugt ld : A-FetO+ vi Nz0. ftD : Edt cong thirc ctia 2 oxit ld Fezon vd Nzom{v6i ns3 va m!5) C{r 2Fe" 2(3-n)e ' 2F'e'3 2.18,56/(l 12+ l6n) : 2.18,s6'(3-n)/(l l2t" t6n) zN's t 2$+n)e -+ 2Al "' Suy ra,yd mol', niqn 0,02(5-rn vd la cri sii mol e cho biing sii mol e nhQn 2.15,56.(3-n)/(t t2,tin) : O,OZ1S-*1 . Pt rAn c:hi cd cdp nghiQm hW t! m:l vd y 8/3'-Edp dn A' C6u 49- DiQn phdn 400 ml iung dich chria ddng thdi KCI vd HCI voi diQn clrc tro, Tdng leP "P l?: ihli gian aicn pnan ld20 phrit v6i cudng dQ ddng diQn 9,65.ampe thi dung dich thu-<tuq: :ry:,*Q':lat tan ci pg : tg.coi trr6 tictr dung dich thly'doi t tto"g dSng k6, nAng dQ moVl cria HCI vd KCI ban ddtt liin lugt ld: A- &.2M vti 0,1M. nni fheo ddu biti, tinh itugc s6 mol Hz ld 0,06 mol, vdi pH:13 tcr c6 [OHJ: 0,]M Sii mol KOH c6 trong l1Antt clung dich sau diQn phdn ld 0,04 nnl. Khi diQn ph6n ctung"ai"n.nay thi ilit diQn phdniru6c, yu dy mbi ddn KCt. 2HCt- +H2 + 7:12 sii mol HCt ban ddu ld 0,08 molvd Ctrua: 0,08/0,4:0,2ju{ 2K{'t + 2H2{) +2KOH + H2+CI Sii mol KOH : 0,04 thi s6 mol KCI ld 0,0'l vd Cp16g1: 0.04/(i.'! = 0,1M. Ciu 50- Cho phan img thu{n nghich: 2SO2 + oz <+ 2SOs (c6 xric tiic VzOs vir to). VQn t6c phAn img thuQn thay ddi nhu thiS ndo n6u ldrn ginm th€ tich cria hQ d6 di 3 16"r: C- Ting 27 lin' itTt',-Cr7rA"g;A-i;";d" crta Soz vd oz lit u vit i. Trc6c khi giitm thd fich : Yt : Kt fsot]'. totl : Kt.t/ -b Khi giam tha tich itAnininiis dA cfta ca hQ tdng 3 lan nin t6c d0 lic nrty Vs ld: [,'s : Kr.[3a]2 '3b : 27Vt t*c lit idng 27 l6n' Sa^4fr} .V*{flh&r. . LQp hdng ,vi KOH vd NaOH gi6ng nhau nAn chi nhdn &iqc 5 chdt Cdu 3- Tir a t6n qudng manhetit chfta 80Yo FeaO+ c6 tnd eiAu chii tlugc 800 t6n gang chria 5o/o C. Cho bitit. ld: A- Cztlo vi Cz}I+. HD: tr/i nHzO > n(loz n€n chi c6 I trudng h.op xay ra: ho(c I ankanvd I anken Ndu ctt 2 an kan thi chi ld I chdt, ndu I ankan vd l ctn kin thi kht diit. B thdm 1 miting Mg cfing c6 khOi lugng m gam, de phan img hodn todn : C- Eia A cd th6 chim xu6ng ho{c nim ngang vfi ilia B. CAu 9- D6 s6n xu6t phdn KCI nguoi tatich KCI kh6i