[r]
(1)SO CTAO DUC VA DAO TAO
9tg'
DAKLAK ON CTTiNH TIITIC (Di thi g6m 02 trang)
Ciu 1: (4,0 di6m)
rt rnr cHeN Hec srr\H GrOr riNn rHCS NAnn ugc zora-zors
TVT6N: HOA HOC
(Thdi gian ldm bei 150 phrit, ttOng k€ giao d6)
Ngny thi: l0l4l20l9
1 Chgn c6c-ch6t thich hgrp thay vio c6c chil c6i rOi viiSt c6c phucrng trinh ho6 hgc thgc hiQn
nht'ng chuytin e6i noa hoc sau: + H2SO4
fli KhiA
x<
\ + H,o + HCr + NaoH to + HNo" P
? Khi B fo*e dich B?, ? Khi B f'
?l'
Biist A dtng ct6 nap cho binh chira ch6y
Z.Odtch6y cacbon khdng d nhiQt d0 cao thu dugc h6n hqp A Cho A t6c dgng
vdi FeO nung n6ng dugc B vd h6n hqp ch6t r8, C Cho B t6c dpng vdi dung dich nudc v6i thu dugc tiSt ma K vd dung dich D, dun n6ng D lai thu dugc t<iSt tria K Cho C tan
trong dung dich HCl, thu dugc vd dung dich E Cho E tdc dUng vdi dung dich NaOH du
dugc hidroxit k6t ma F Nung F kh6ng khf tdi khi5i lu-o ng kh6ng O6i ttru dugc ctr6t ran
G Bii5t c6c phin img xiy ra hoin tonn X6C dinh phan Criu A, B, C, D, K, E, F, G vd
vi6t cr4c phuong trinh hori hgc CAu 2: (4,0 tli6m)
1 Cho hinh vE m6 t6 qu6 trinh iti6u chiS Cl2 phdng thi nghiQm Tim di6m chua
dtng mO hinh vd iI6 xu6t c6ch bO tri dung cp, h6a chft cho hqp ly YiAt cdc phucrng
trinh ho6 hgc
B6ng dm
dmgdchNaCl
HCllifi6
2, Ald dung dich HzSOa, B ld dung dlch NaOH Thgc hiQn thi nghiQm:
Thi nghiQm l: TrQn 50 ml dung dich A vdi 50 ml dung dich B dugc dung dich C Cho qu!
tim vdo dung dich C th6y c6 mdu d6 Th0m tir tt dung dich NaOH O,lM vdo dung dich C <l6n qu) tr& lpi mdu tim thi thdy hOt 20 ml dung dich NaOH 0,lM.
Thi nghiQm 2: TrQn 50m1 dung dich A v6i 100m1 dung dich B thu dugc dung dich D Cho
qu)tim vdo dung dich D th6y cQ mdu xanh ThCm tir tir dung dich HCI O,lM vdo dung dich D d6n qui trd lpi mdu tim thdy h6t 20 ml dung dich HCI 0,lM.
Tinh n6ng dQ mol oia cic dung dich A vd B
(2)C0u 3: (5,0 tli6m)
1 Vi6t c6c phuong trinh ho6 hgc bi6u di6n chuyOn eOi noa hgc sau: Etilen
Metan
Natri axetat
l-c"r-i *.b* l
L I
xv
Y ,> ,6 Y
-.*b""1 -lNut,i;.t"rl f-"f
I Ntrt
'-I !, E
2 Nung 8,08 gam mQt mu5i X thu.d*q" h6n hqp G (g6m vi hoi) vd.1,60 gam mQt hqrp ch6t ran Y kh6ng tan nu6c O mQt ili6u kiQn thich hqrp, h6p thu hiSt G vdo binh chrli
200 gam dung dich NaOH l,20yo thu dugc dung d-ich H chi chria mQt mui5i nh6t c6
n6ng d0 2,47% X6c ctinh c6ng thric phdn trl cria mu6i X Bitit r6ng nung mu6i X thi kim
lo4i X kh6ng thay d6i ho6 tri
CAu 4: (5,0 tli6m)
1; H6n hqp Q g6m rugu no, don chrlc, mpch h0 Y; a><it cacboxylic no, don chfc, m4ch hO Z
vi e_ste M t4g bOi Y, Z Chiah6n hqrp Q ldm phan blng nhau:
- OOt ch6y hiSt phAn I dugc 55,275 gam CO2 vit25,425 gam H2O
- Xa phdng h6a phry bang mQt luqne NaOH vira dri iOi O c4n duqc 0,35625 mol rugu Y vd mu6i khan T O6t chay hoan toan T ttugc 15,9 gam Na2CO3 vd 46,5 gam h5n hqp CO2;
HzO Bi6t c6c phan ring xiy ra hodn todn X6c <Ifnh c6ng thr?c c6u tao vd phdn tram v€ kh5i luqng cria ruqu Y, axit Z vd este M trong h6n hqrp Q.
2 Chia 17 g1m h5n hqp ran X g6m: M*Oy, CuO vd Al2O3 hai phdn bdng nhau: - Hgu tan phAn vdo dung dich NaOH du th6y cdn 14i 7,48 gamh6n hqp ran I FOm 2 oxit - Dan 4P28.lit CO (ttktc) vdo phAn nung n6ng dugc h6n hqrp riin g vd h5n hqp C
c6 ti kh6i <l6i vdri hidro ln 18 Hda tan B vdo dung dich HCI du cdn lqi3,2 gam Cu gi6t c6c phan img xiy ra hodn todn
a) Vi6t c6c phuong trinh h6a hgc xiry ru
b) TtS phdn tram ve nrOi luqng m6i nguy6n ti5 h6n hgp X
c) EC hoa tan hoan todn A phii dung h}t 12,5 gam dung dich HzSO 4 98yo n6ng Xdc ilinh kim lo4i M vd c6ng thrlc M*Or Bitit:
M"Oy + HzSO+ d{c n6ng -+ M2(SO4L + SOz + HzO
Cffu 5: (2,0 tli6m) MOt binh kin chria h6n hqp X g6m axetilen 0,15 mo[; vinylaxetilen (CH2:CH-C=CH) 0,12 mol; hidro 0,195 mol vi mQt it bQt Ni Nung h6n hqrp X mQt thoi
gian thu dugc h6n hqp khf Y c6 ti kh5i eOi vOi H2 la 19,5 Cho toan b0 h5n hqp Y t6c
dung vta dri v6i 0,21 mol AgNO3 NH3 thu dugc m gam ktit tfra vd3,024lft h6n hqp
khi Z (dktc) tho6t Hdn hqrp kti Z phin fng ti5i da vdi 165 ml dung dich Brz 1,0 M X6c tlinh gi6 tr! cta m Cho biiit c6c hqp ch6t c6 ni5i ba dAu m4ch (-C=CH) c6 khi nEng phan img vdi AgNO3 NH3 theo phuong trinh ho5 hgc sau:
R-c=cH
i*: .1 Yfni 1:::.:.1l'
+ NHaNo3
o Thi sinh kh6ng dugc stl dpng tdi liOu
Gi6m thi kh6ng giii thich gi th€m