cao hoc hue

8/3/2019 cao hoc hue

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BQ GIAODUCVA DAO TAOtDAI HQC HUE Ho vd ftn thi sinh:56 bdo danh:

KV THI TTIYEN SINH SAUDAI HQC NAM 2006M6n thi: Co s& f thuyiit HOahgc vir Cdu t4o chft

(ddnhcho: Cao hqc)Thdigian ldm bdi.' 180 phtitCAu

O tr4ng th6i ccy in, electronc6 nlng lugng cao nh6t cria c6c nguyOn t A vd B clugc d[c tnmgboi c6c sO uqng tir sau:A) n :2 1 : 1 m : -1 t r r s + l l 2B ) n : 2 l : 1 m : * 1 m r : - l / 2

1) Dnng thuytit VB hay cho bi6t tr4ng th6i lai ho6 cira nguyntir A trong hai phdnttr ABz, *ABz virdanghinh hgc criac6c phdntu d6.

2) Dung thuy6t MO hay so s6nh dOdai fiOnk6t vd n6ng lugng ion ho6 thu nhAtgiira c6c phAn uAz vd AB.Chu 2.Nung n6ng h6n hqp gdm 46,0 gam12 i 1,0 gam H2 trong mQtbinh kfn o 470oC,xhy ra phinimg: HzG) + IzG)


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e0 cno DUC A DAoTAoDArHec Huf Hg ua tn tht s'inh:Sd bd,odanh:xt rurr ruyiN srNH sAU DAr Hoc NAu zooz

M6n hi: cO sd r,f firuyfr noA noc v,q.c,{.u rao cn,{r(d.d.nhho Cao hoc)Thdi,gi,an d,mbd,i:180 phritCAu I. Nhi6t toA ra khi ddt chri.y 8ng r'p 1,0gam tinh b6t (C6H1O5), thdnh COr(k) vb"H2O(I)Iit"4,18 ccal. Tinh entanpy ao thir,nhchudn crla 7,0gam tinh b6t. Bi6t entanpy ao thdnh chudnc'la CO2(k) vi:"H2O(I) lhn iuot ]b -94,05 kcalfmol vil -68,32 kcalfmol.Cho: 1 :7 : C -72 : O: 16 ,CAu II.-1.Ndu nhung didm bdt thudng ci.a cdcdung dich axit, bazo vi mu6i so v6i dung dich chfrachdt tan kh6ngbay hoi, kh6ngdi6n ly. GiAi thrch?2. Khi hod tan 10,1gam KNO3 trong 1000gam H2O thi dung dich nh6n duoc c6 nhi6t d6 b5tclhucl6ngddc ld -0,301oC. Tinh d6 di6n ly o cr-ia 11[03 trong dung dich tr6n. Bi6t hXng

s6 nghidm l6ng crlanu6c lir,Ka : L,86.ChoK: 39r r ' - 74:O :16.CAU III.L Phan bi6t b6,cphd,n rng vi, phdn trl s6 phd,n rng.2. PhAn &ng 2N2Os ------+NzOn t 02 xA,y a & nhi6t il6 ? c6 hEngsd tdc dQphA,ntng bXng2.70-2 (phtit-t). Hay tinh thli gian eld90% ugng AhOs ban dbu bi phdn huf vd thbi giannrla phdn ring tr ctng d nhi6t ct6tr6n.Ciu IV. Chopin: (- ) Pt.,H2(0,75atm) | HCl(O,2bM) I | .9rr2+(1,b ), Sn4+(0,60M) I pt (+)/. Hd,yvi6t cricphd,n rng xAy ra tai anot, catot vil phdn ring tdng quri,tkhi pin hoat cl6ng.2. Tinh sric din cl6ngcrla pin.

3. Xric dinh tf s6 nbngcl6 giira Sn2+ vit ,Sna+ aocho sric di6n d6ng crla pin bi,ng kh6ng.Cho th6 khri ti6u chrd,n posno+1s,,* : 0, 13 (I/).CAu V. Ndng lucrng on hori, hir nhdt cria Zi ld, EI : *5,4 eV vA, i luc electron crla Cl IiEA : -3,61 eV. Hdy tinh hi6ur?ngnhi6t (tinh theo don vi J) cuaphd,nrnggita I mol Li,(k) vit"Lmolct(k): Li(k) + Ct(k) -+ Li+ (k) + CI- (k)cluoc ti6n hA,nhd ri,psudt thdp cl6n mrlc mb cric ion tao thlr,nh kh6ng k6t hop clugc v6i nhau.Cho eV : 1,062.10-rsJ, Ne : 6,022 1023.Cdu VI. Electroncu6i (electronc6 n5ng uong caonhdt) trong cdu hinh electroncria ciic nguy6nt6 A, B & trpng thrii co bdn duoc cl5c rung bdi cri,c 6 uong trl sau: -

Nguy6n6 A: n :2 ; l :7 ; ma:0 ; m"- - : IKhi hdo6t"r"-iliffil;"t,l;ri..,'";i ,T'io;uT,,:^J;1,,.hu ru


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BOGrAODUCVA DAOTAO:DAI HOC HUE Hq ,-d n thi sinh:SAnao danh;KV THI TUYEN SINH SAUDATHQC

MOn thi: Co s6 Ij thuyt hoti hgc vd Ciiu(ddnhcho Caohoc)Thdigian ldm bdi: 180phft

NAM 2OO8no chht

Cf,u I (1,5dim):Cho I mol H2 vi 1 mol 12 iro m6t binh1) Tinh 6p su6t rong binh.2) Tinh 6p sudt iOng ua 12 d HI trongBiet o 4J0oC, han vngH2(k)+ I.(k) : zHI(k)Ch u2(1,0dim):

30 it dd hirt chAn h6ne.du nn6Irs n 470"C.h6nho.p 6nc6 hangsd bang.cAn dngK: 50 .

Khi hoa an0,85gamZnClz rong 725gamH2O h\dungdichnhin ilucr.c6 nhitd0 tl6ngddc a -0,23'C.Tinhd6di6n y a cia ZnCl2 rongdungdich rdn. l6t trings6nghiQml6ng ta nu6c d K6= 1,86.Chonguyntu khol ua n - 6) vdcua I = J5.5.Ciu 3(l 0dim):O nhitd6 913K, phin fng dehydro o6metylamin:H3C-NHr&) + HCNft/ + ZHz&)c6hing st5ticd6bing 5.1,0'3tdy-11) Tinh thdigiannriaphin img 1172.2) Tinh ho igianphdn uj,cin hi6td6ndng l6 metylamin lim99Vo ovo i bandiu.CArt40 .5 did:Chophin img: Fe2* AB* : Fe3*+ Ag.1) O ndngdOnhu nhaucria on Fez* d Fe3*, dngd6 ion Ag- phaibAngbaonhi6u lii srirc iQn lQng uapin dinc6u ao ri c6cdincuc Ag./Ag vd Fe3./Fe'?*angkh6ng?^ . , , - ' . . : : ^ . :j) xac drnnnang ocanDarg z)-L cuapnanmg en.Cho hi :khu i6uchuin Pf,n-,on 0,'19g , Ql,;.re;.:0,771Y .

Cin 5(2,0diiinl:Chophin rmgd th6khi: K(k) + F k) ------+K. (k) + F (k).HiQu ngnhi6t ria hanmg d AH: 19kcal.mol-r,lo rongdidu i6nc6c on bi ngdn in khong 6thgpduocvdi nhau.Biiit l]dng uong on hoi thri nhAtcnaK(k) lit EI = 4,3 eV. HZy tinh 6i lqc electronEA) cnaF(k1.cho I ev = 1,602.10-'e,N ,= 6,022.1023Ciu 6(1.5didd:Electron u6i (electron 6 ning lugng caonh6Lt)uacdcnguynu A vi B d trAng hiii co bin tluqcdictrungbdi cic s6 uo.ngri sau:A : n : 3 { : l lT)l: *l mr : -

B n:2 !:1, f i l t : *1 ms: -1) Hey du tlorlLn oe ri t6i tla c6 thii c6 cta c6c nguy6n 6 A vd B.2) Dirng thuydt MO, hly x5c dinh tu tinh criaphdn u Br.3) A virB t?ophen d ABr c6 ciu truc 1amgiricphing.ddu.Lin k6t A-B c6 phiLn uc kh6ng?PhAn r AB, cophin cuc kh6ng? T4i sao?Ciu 7 1,5 dint):

Cho hai phuc [Co(NH3)6]3'vd[CoF6]r-c6ndng uong t6ch A" lAn luot liL275 kJhnol vdL 55 kJ/mol. Ndngluo,,ng in cho sg ghdp d6i electron i 251 kJ/mol. Hdy x6c tlinh ciu trric hinh hoc, c6u hinh electron ve flr tinhcira rai phricch6t r6n. Chi rOphric spin cao,phric spin thdp.ptrIc lai hoi trong, phr?cai ho6 ngodi?Cho dien ich h4tnhin (Z) cu ac6 cnguyn 6: H(Z = l), N(Z = 1),F(Z= 9), Co(Z= 27).

1212

Ghi chri: Cdn bo coi thi khonggiai thich gi thm.


4/4

B0crAo DUcvA DAorAoilAr HQC HUE Ho vd ftn thi sinh:SAUaodanh:

xt rluruvtN snwr AU.D4.rHecAMzooeoqtpM6n thi: Co s6 j? huy6tho6hgcvd cAu ao chf,t(Ddnhchocao hqc)Thdigian ldm bdi:180 phritCAur. Tin.hbiiSnhin entropycriaphan rngd6t ch6y mol glucose QeIIr:Oe) 25"C.Bi6t thiCunhiQt huan '3aC6I{12O6d -673kcal.mol''.Thd ddngdp tao hanhchudncriaCeHrzOo, Oz(k) dgrO(D ldn uqt ld -215kcal.mol'r, 94,3kcal.mol-tvir -56,7 oal.mol-I.Ciu I.{.Tich s6 anciraPbI2d 25"Cbdng4.10-e.

1) Tron not th6 tich dungdich Pb(I.{Or)z .10'3M di otrng h6 tich dungdich NaI 2.10nM,tao hdnhdungdich(D).Hay chobitit trongdungdich(D;, kiStiaPbI, c6 xu6thiOn Jr6ng?

2) Ifti thOmNaJvAodungdich@), ctQan criaPbIz trnghaygiim? Vi sao?3) NIu6n drngiAmd0 tan criaPbIzdi 106n tht phdith6mbaonhi6umol NaI vdo 1 it dungdicirbio hodFbIz?

Ciu lII. l.) Efnh nghia 6c dOphan mg. Viiit bi6u hric oanhoc m6 ta t6c dO rung binh vdt6c d0tuc +!bi.

2) X6t phan mg bdcmOtxAy a d nhiOtd0 I c6 th&igiannriaphdnung bene cOO ldy.a)X6c dlnhhdngs6 6c d0phan ing d nhiQt g d6.b) Tinh t"hdigianphanring can *rltit d6n6ngdOch6tphanung giam90% so vdi ban dAu.

C4.uV. Tinh AGi* vd AS!r, criaphanung: 2lt(k) + Oz&) = 2HrO(l).ei6t: O2k)+ 4* + 4e=2HzA0 qo= 1,23VNniet tao hanhoia I{rO(/, ML, = -68,32kcal/mol.

Ciu V. Cho bi6tph6 ph6txp crianguyOnri hidro c6 )w = 1215Ao, rr = 1025A', Lq : 92'l NthuQc dyLyman.X6c dinh c6cbu6c s6ngs2vd X+z ddyBalmer.Ciu VI. Electronc6 ndng ugng caonh6t rongcduhinh electron rianguydn 6 A duqc l6c rungbd ic6cs6ugng t tsau : :2 , ( . : l ,m:+1 na* ,=- l .Nguyn t6Bcungchuk lvd iAvd thu0cnh6m IVA, nguydn 5 C ctrngnh6m vdi A vd thu0cchu cj' 3.1) X6t su ao hdrl cacphan t B& vd C& theo huy6tVB.2) Sc s6nhnhiOtdQho6 6ngc0a Jri BAz v6i khi CAr. Gi6i thich?Ciu VII. xdt phfc [Cu(Nr]I)al2*.Hdy chobi6t:1) Trang h6i ai ho6criaCu2* rongphrlc.

2) CAu ric hinh hqc vd tinh chdt u criaphric.3) Su t6ch mrlc ndng uong d cria Cu2* rong trucmgphtii tr! criaphrtctr6n.

Cco Ci$n ichhat nhtu: CUQ = 29);N(Z = 7); H(Z = l).

Ghi chir: Canb0 coi thi khdnggiai thfchgi th1m

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