De Thi Hoc Sinh Gioi Mon Hoa Lop 10 Va Dap An

7/25/2019 De Thi Hoc Sinh Gioi Mon Hoa Lop 10 Va Dap An

1/17

S GIO DC V O TOTHNH PH NNG

HNG DN CHM K THI HC SINH GII THNH PHNM HC 2! " 2#

M$N% H&' HC (P )Thi gian: 150 pht (khng k thi gian giao )

C*+ I (4 im)

1. Hy gii thch ti sao phn t Cl2O c gc lin !t ("""

o

) nh# h$n %& ' &i lin !t ClO ("*+",)l-n h$n so %-i phn t ClO2 ("".o%& "*4/,)02. 1o snh %& gii thch ' mnh3

(a) tnh ait* tnh oi ha c5a cc ch6t HClO* HClO2* HClO7%& HClO48(9) tnh ait* tnh h c5a cc ch6t H:* HCl* H;ii thch s? 9i!n @i hAi lBng


2/17

lin !t H 9[ ph %d m't phen hi!n cc phn t ch li gen nhaN h$n nn hAi lBng


3/17

2. (a) pi j ni]

7iOF

OF "G8.K4K*22/.G.2*G

G+*G

t]

nC 2

2

=

=== (mol8l ")

.7

OF "G8"K*"G8.K4K*2"G8.*"C8% 2 === mol8l "8s"8

] phB$ng t


4/17

saN* nhn


5/17

C*+ V (4 im)]h?c t! hong pi


6/17

S GIO DC V O TOTHNH PH NNG

HNG DN CHM K THI HC SINH GII THNH PHNM HC 2! " 2#

M$N% H&' HC (P )Thi gian: 150 pht (khng k thi gian giao )

C*+ VI (4 im)"8 FgNyn t c5a ngNyn tA \ c iEn tch ht nhn 9`ng 4"*K28"G"/ C ngNyn t c5a ngNyn tA

c hAi lBng 9`ng "*.8"G22gam8 \c [nh \* %& ?a t


7/17

78 >i t


8/17

i8 >i a l& sA mol c5a F2O4c t


9/17

"8 2= Cl2 =2 2Cl1aN m't thi gian c y


10/17

1,00

28 (a) hB$ng t


11/17

(9) INng [ch c m&N %&ng nht3 "J2O2 2H;< H2O ;


12/17

\ %& l& cc ngNyn tA nhm * SN to hp ch6t %-i hii %& ; len lBt l& hi


13/17

C*+ -II (4 im)1 Cho 9i!t sA oi ha c5a mbi ngNyn t lBN hNxnh (1) t


14/17

]a c 3

===+

=+22*Gyp"7*G

/2*Gy72

GK*/y2+24

q44*74q"GGgamGK*/

molJgam24mol"7*Gmq ~g =

= %& qK*Kmq l =1#

C*+ -III (4 im)

"8 FgNyn t c5a ngNyn tA \ c t@ng sA ht cc loi l& KG* sA ht mang iEn t


15/17

3 a) _ nhiEt ' thBng32OH Cl2Cl ClO H2OKOH 7=2= =O7 7H2O

]


16/17

tAc ' phn Mng chm)8 ]Zng p sN6t (9`ng cch th@i lin tfc 1O 2%& hLng h Bc nRn V p sN6t cao %&ol} phn Mng)8 \c tc hLng nh hBVng !n s? chNyn i cn 9`ng* nhBng gip phn Mng nhanht !n ti :DOyl& cLng thMc c5a

( ") 2:DOy 2yH21O4 :D2(1O4)2yJ 2y H2On ny

(2) 2:DOy (K2y) H21O4 :D2(1O4)7 (72y) 1O2 ( K2y) H2On n (7y)

]hDo gi thi!t 3 n(7y) j "*2 ny 2*2 7

y 7 4= = l& :D7O4

)1#("*GGG*G)

C*+ -V ( 4 im)"8 ] Nng [ch H21O4/.q (Ij "*.4 g8mU") %& Nng [ch HCl ~* t


17/17

H21O4* saN cho t t %&o 9nh chMa nB-c hN6y SN8 Wi Nng [ch H 21O4tht ngN'i* ong 4G mU Nng [ch HCl ~ thm %&o 9nh* saN thm nB-c%&o cho !n %ch 2GG mU

2 hB$ng t

De Thi Hoc Sinh Gioi Mon Hoa Lop 10 Va Dap An

Documents

Transcript of De Thi Hoc Sinh Gioi Mon Hoa Lop 10 Va Dap An