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Sa

GIAo

D1)C

vA DAD

T~O
DONGNAI

DE THI CHINH THUC

KY THI CHQN HQC SINH GIOI LOP 9
NAM HOC 2014 - 2015

MON;HOAHQC

ThiJi gian h'tm hai: 150 phut
Ngay thi: <i>03/04/2015</i>

(D~ thi nay gbm co 2 trang, co 5 diu)
Clin I: (4,0 di~m)

Can 1.1: Nen va giai thich hien tu<;mg(ghi phuO'ng trinh philn Ung)
a/ Cha miln qui tim ~m vaa binh chua khi cia kho.

<i>bl</i>Cha tif tif khi SO, suc cham vaa <i>nuac</i> voi trang d~n duo

<i>cl</i> Cha nhom vaa dung dich NaOH du

d/ Cha tUng lu<;mgnhO natri d~n du vaa dung dich CUS04

Can 1.2: Tbng

<i>sb</i>

h<tt(p, n, e) trang h(JJl ch~t T (co cong thuc A>B) brmg 52, trang do

<i>sb</i>

h<ttkhong mang
dien it han

<i>sb</i>

h<ttmang dien la 20 h<tl.

a/ Tim cong thUc h(JJl c~t T bi~t rfutg h(JJl ch~t nay co th~ t<ta thilnh tif phan ung cua cac dan
c~t nguyen

<i>tb</i>

A vai nguyen

<i>tb</i>

B. Vi~t philn ung xay ra.

bl Haan thilnh So' db phan ung sau: (m6i mili ten la m(lt phan Ung khac nhau, ghi ro di~u kien
(' '). (T) +"'0") (Y) +(T» (Z) +"'0") (Y) +(G» (Z)

neu Co' . (1) (') (3) (,).

Can II: (4,0 di~m)

Can II.1: Haan thanh va din b~ng cac ph!m Ung hOa h<;>csau day:

<i>al</i>FeS, +HO ~ 7+7+7
b/FexOy+H,SO,,,,, ~SO,+7+7

<i>cl</i>CU,O+HN03 ~CU(N03)2+N.ob +7
dlP+NH,CIO, ~H3PO, +N, +CI, +H,o

e<i>I</i> C6H,o,N + Fe + HCI ~C6H8NCI + FcCl, + H,O
<i>f!</i> Cu+O,+?~CuS04+H20

Can 11.2: Tren baa bi m(lt la<tiphiin bOn NPK co ki hieu bfutg cM

<i>sb</i>

10 10.20 (hay 10 10:20).
Hay:

- Cha bi~t

y

nghia cua ki hieu b~ng

<i>sb</i>

tren

- Tinh hilm lu<;mgcua nguyen

<i>tb</i>

K trang la<tiphiin bOn tren
Can Ill: (3,0 di~m)

Can Ill. 1: Cha 4 binh chUa khi m~t nhan chua rieng biet tUng khi sau: CO, metan, sunfurO', etilen. Hay
trlnh hay cach nh(in bi~t khi chua trang cac binh tren (m(lt cach an taan). Vi~t philn ung xay ra
(n~u co).

Can Ill.2: Tif tlnh b(lt (dung cu, di~u kien, ch&t xuc tac va vo Co' co du) vi~t cac phuO'ng trinh di~u ch~
palietilen.

Can IV: (4,0 di~m)

Can IV.l: D(l tan cua MgS04 iJ 20°C la 35,1 gam. Khi them 1,0 gam MgS04 vaa 100,0 gam dung dich
MgSO, baa hOa th~y xu~t hien 1,584 gam MgS04 k~t tinh iJ d<tng mubi ngam <i>nuac</i> (X). Tim
cong thuc cua (X)

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Can IV.2: Cho m (gam) Fe vao V (ml) dung djch AgN03 I,OM d~n khi phan ung hoan toan thu duqc m]
(gam) h6n hqp kim 10(li(X) Chia m] (gam) X thanh 2 ph~n. Phiin I co kh6i luqng m2 (gam) cho
tac d\lng v6i luqng dung djch HCI du thu duqc 2,24 lit khi. PMn 2 co kh6i lm;mgm3(gam) cho
tac d\lng v6i luqng du dung djch H2S04 diic nong thu duqc 8,96 lit khi S02 (S02 la san ph~m
khu duy nh~t cua H2S04). Bi~t cac phan ung xay ra hoan toan, khi do iJ di~u ki~n tieu chu~n va

m,-m,

=16,4.

aJ Vi~t cacphuong trinh phan ung xiiy ra.

<i>b/Timm</i>

va

V.

Can V: (5,0 diSm)

Can V.I: f!idrocacbon lahqp ch~t him co trong phiin tu ch] chua hai nguyen t6 eva H. Hidrocacbon iJ
the khi thuiJng co so C trong phiin tu nho han 5 Hon hqp khi A gom metan va m9t hidrocacbon.
D6t chay hoan toan 1,0 lit A c~n dung vila du 2,6 lit khi 02 thu duqc C02 va hoi nu6c. Diln toan
b9 san pMm chay 19itir tir vao dung dich H2S04 diic du tMy co 1,6 lit khi khOngbj hdp th\l Xac
djnh cong thuc phiin tu cua hidrocacbon va tinh ph~n tram th~ tich cua CH4 trong h6n hqp A.
Bi~t rimg thS tich cac khi do iJ cimg di~u ki~n nhi~t d9 va ap suk

Can V.2: Cho m (gam) h6n hqp X g6m ancol etylic va axit hiiu co A (CnH2n02) d6t chay trong oxi chi

thu duqc h6n hqp Y (g6m khi va<i>hail.</i> Toan b9 Y bi hdp th\l hoan toan vao dung djch NaOH (6
nhi~t d9 thuiJng) thi thdy kh6i luqng dung dich NaOH tang 4,08 gam thu duqc dung djch Z. Cho
h~t Z tac d\lng v6i dung djch CaCh du thu duqc dung dich T va m] (gam) kSt tua Cho h~t T tllC
d\lllg v6i dung djch Ca(OHh du thu duqc m2 (gam) kSt tua. Bi~t m]+m2=6,00.Bi~t thS tich khi
do iJ di~u kien tieu chudn va trong X co 37,0%<%mA<42,0%

aJ Vi~t cac phuong trinh phan ung

<i>bl</i> Tim cong thuc phiin tu, goi ten A.

<i>cl</i> Dun m (gam)h6n hqp X (co xuc tac H2S04 diic) thu duqc 0,528 gam este. Tinh hi~u sudt
phiin ung t(lOeste.

---H~t---Cho bi~t nguyen tu kh6i{theo u) cua cac nguyen t6: H=I; C=12; N=14; 0=16; S=32; CI=35,5; Br=80;
Li=7; Na=23; K=39; Rb=85,5; Cs=133; Mg=24; Ca=40; Ba=137; AI=27; Mn=55; Fe=56; Cu=64;
Zn=65; Ag=108

<i>Thi sinh ilu(fc sir t4tng bang</i>

hf

<i>thdng tniln hoi'm cac nguyen</i> til<i>hoa h(Jc</i>

Ho va ten thi sinh:
s6 bao danh:

Giam thi I: .

Giam thi 2: .

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