ri rsr cHQN ogr rwnN HSG ur/ rru crar roAN uBND TiNH rnAr NcuYf,N so crAo DUC vA oAo r4o op cniNn EIEM CUA TOAN rnfiNMrcr@gc2o1s -2016 THPT L6P tz, cdP Mon: n6a ngc Thdi gian: 120 phri-t (khOW kA thdi gion giao Chri f : - Pe thi gdm 96 06 trang' - Thf srni ldm bdi trtrc tidp vin di thi ndy' rnrlc cAC CrAU KIIAO NAT TTTT (Ho, tAn vd chit ki) s6 dA) mAcn (Do Ch* tich HD chiim thi ghi) Bdng chtr Bdng s6 qua ttnn 0t wuo Ket quu tuuru' Loc ost toan Ke bai tten kA A hdn vao toan vdo qud t[nh tinh todn ^EL ary dtrt, ?r/ sinh tri.nh Qdy cdch gidi, kit oud quy tac tim trdn sd cila don vi tinh quv dlnh chinh xdc t6i chir"ti"i:naTrnrp pir;; ;;"iA, pnay theo - todn "trong -.'o bdi ( cho: H=1;' C =12; N:14; O=16; Nu=23; K=3g; ca=40; Ba=l37; Fe=56; Ai=27; Zn=65; Cu=64; A{-108; Ni-59 )' Cffu 1: (5,0 tli6m) OO"g vi flc" phen rd ph6ng x4 d6ng thdi theo phhntm5 if,c, kt , \[2,+s*cu vitffc,S!f;Ni+r p trorn-^::l-t1#u 25 gid 36 phft t6y ban aAg Thlrc nghiQm *cu 1on "noii6ttu mQ] luqng d6ng vi g Tt tan ot tt tatt gam ch6t 16 cdn du thi HCI dich dung tan vdo dich KoH du thi phen ban ddu, sar2gsib il;iAy-hbt hsrp cdn rai 00 hoe vio dungrinh chu ki b6n rd ctra so,4vo rhoi ruqng hdn hqrp rl[ai r"srs 6acu ve st5 mol ctra Zn, Ni ;;br?;kff; ;;; ;; mJ bil; til cAu 2z (5'0 tli6m) thltc t6 mQt phdn ion s]- dugc thay c6ns thric Fesz, Th"o li thuytit khoang pydt c6 c6ng th6 b6i St va c6ng tfr"" iO"g quSt cira pyrit ld FeS2-* Nhu vfly, c6 thri coi pyrit nhu li h5n hgrp FeS2, FeS Khi xir ly *Ot -5, k*r*i"g vdi Br2 KOH du thi xby raphan img theo scv d6: - Fe(OH)3 + KBr + K2SO4 + H2O FeSz * Brz + KOH Fe(OH)3 + I(Br + K2SO4 + H2O FeS + Br2 + KOH Sau lgc, dugc chdt rinA vd dung dich B thu dugc 0,2 gam,Fe2O3 - Nrmg cnatrhnA d6n khi5i luqng kh6ng dOi Cho dung dich BaClz du vdo dung dicfr g thu dugc 1,1087 gam kiit tua BaSO+ -1 X6c dinh c6ng thric t6ng qu6t cria ktro6ng pyrit Tinh I Br A6 oxi h5a m6u Cdclt gidi tr6n K1t qad : Cfiu 3: (5,0 di6m) r )^ - - r- SOI- *?1,'lM phel?Tg X.ldm Chia COr'', Cho dung di+ X chira: K*, NH+* , va tdch ,1.6:41-e?y fit i1a c6 cho t6c duns hct v6i dung aich ea(Orqf du, dyn.n6ng thdy Or"fho?l toan v6i dung dich HNO3 thi thay tho6t 672-mlkhi (dkrc)IpnA" Z ct o dung dich X' 336 ml (dktc) bay Tinh t6ng kh6i lugng mu6i tan lugng nhiet dQng rg.u: Cho citc ' !* AH" (kJ.mol-t) ASo Tinh AG" cua (J.mof'.K-') H3PO4(dd) HzPO+-(dd) rf+olr+H2o -1288 -1296 -s6 158 90 od n6c thir o, 81 oH' r0t Cflu 4: ( 5,0 iliAm ) Dung dich A gdm axrtHzCzOa 0,1M vd axit 1.*#er;; hUr,oun toan to ml dung dich c6 pK,r : 1,25 vlr PKr2 : A cdn25 ml dung dich NaoH 0,12M Tinh c6u5:(5,OiliAry) , , \ ,1 _^L^.,:*L mol (ti chia 44,8 gamtrorl rrqp X-g6m axit axetic, glixerol vd etyl axetatldm ba phan lQ s6 m6i ptran ld nhu nhau) - ph6n !: tdc AU"g htit v6i Na thu dugc t,3441ft (dktc) H2 oiua cilc ch6t Phan2:t6cao"evtadirv6i500mldungdichNaoH0,4Mklridunn6ng -;ha"l' irO'f.fr}i lugng bang kh6i luqng phan 2) thc dung v6i NaHCO: du thi 2,6881it (dktc) baY Tinh khOi luqng m5i ch6t c6 suAt c5c d6u ld lO0% c6 C6u 6: ( 5,0 (ihm ) b gam Ch" , gu- frO" hq,p g6m esteA vi B tdc dUng htit vOi dung dich KOH thu dugc i axtthiru co itcrn chric t ... li h5n hgrp FeS2, FeS Khi xir ly *Ot -5, k*r*i"g vdi Br2 KOH du thi xby raphan img theo scv d6: - Fe(OH)3 + KBr + K2SO4 + H2O FeSz * Brz + KOH Fe(OH)3 + I(Br + K2SO4 + H2O FeS + Br2 + KOH Sau lgc,... rf+olr+H2o - 128 8 - 129 6 -s6 158 90 od n6c thir o, 81 oH' r0t Cflu 4: ( 5,0 iliAm ) Dung dich A gdm axrtHzCzOa 0,1M vd axit 1.*#er;; hUr,oun toan to ml dung dich c6 pK,r : 1 ,25 vlr PKr2 : A cdn25 ml... dugc t,3441ft (dktc) H2 oiua cilc ch6t Phan2:t6cao"evtadirv6i500mldungdichNaoH0,4Mklridunn6ng -;ha"l' irO'f.fr}i lugng bang kh6i luqng phan 2) thc dung v6i NaHCO: du thi 2, 6881it (dktc) baY Tinh