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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$n so %-i phn t ClO2 ("".o%& "*4/,)02. 1o snh %& gii thch ' mnh3
(a) tnh ait* tnh oi ha c5a cc ch6t HClO* HClO2* HClO7%& HClO48(9) tnh ait* tnh h c5a cc ch6t H:* HCl* H;ii thch s? 9i!n @i hAi lBng
7/25/2019 De Thi Hoc Sinh Gioi Mon Hoa Lop 10 Va Dap An
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lin !t H 9[ ph %d m't phen hi!n cc phn t ch li gen nhaN h$n nn hAi lBng
7/25/2019 De Thi Hoc Sinh Gioi Mon Hoa Lop 10 Va Dap An
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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$ng t
7/25/2019 De Thi Hoc Sinh Gioi Mon Hoa Lop 10 Va Dap An
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saN* nhn
7/25/2019 De Thi Hoc Sinh Gioi Mon Hoa Lop 10 Va Dap An
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C*+ V (4 im)]h?c t! hong pi
7/25/2019 De Thi Hoc Sinh Gioi Mon Hoa Lop 10 Va Dap An
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S GIO DC V O TOTHNH PH NNG
HNG DN CHM K THI HC SINH GII THNH PHNM HC 2! " 2#
M$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
7/25/2019 De Thi Hoc Sinh Gioi Mon Hoa Lop 10 Va Dap An
7/17
78 >i t
7/25/2019 De Thi Hoc Sinh Gioi Mon Hoa Lop 10 Va Dap An
8/17
i8 >i a l& sA mol c5a F2O4c t
7/25/2019 De Thi Hoc Sinh Gioi Mon Hoa Lop 10 Va Dap An
9/17
"8 2= Cl2 =2 2Cl1aN m't thi gian c y
7/25/2019 De Thi Hoc Sinh Gioi Mon Hoa Lop 10 Va Dap An
10/17
1,00
28 (a) hB$ng t
7/25/2019 De Thi Hoc Sinh Gioi Mon Hoa Lop 10 Va Dap An
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(9) INng [ch c m&N %&ng nht3 "J2O2 2H;< H2O ;
7/25/2019 De Thi Hoc Sinh Gioi Mon Hoa Lop 10 Va Dap An
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\ %& l& cc ngNyn tA nhm * SN to hp ch6t %-i hii %& ; len lBt l& hi
7/25/2019 De Thi Hoc Sinh Gioi Mon Hoa Lop 10 Va Dap An
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C*+ -II (4 im)1 Cho 9i!t sA oi ha c5a mbi ngNyn t lBN hNxnh (1) t
7/25/2019 De Thi Hoc Sinh Gioi Mon Hoa Lop 10 Va Dap An
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]a c 3
===+
=+22*Gyp"7*G
/2*Gy72
GK*/y2+24
q44*74q"GGgamGK*/
molJgam24mol"7*Gmq ~g =
= %& qK*Kmq l =1#
C*+ -III (4 im)
"8 FgNyn t c5a ngNyn tA \ c t@ng sA ht cc loi l& KG* sA ht mang iEn t
7/25/2019 De Thi Hoc Sinh Gioi Mon Hoa Lop 10 Va Dap An
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3 a) _ nhiEt ' thBng32OH Cl2Cl ClO H2OKOH 7=2= =O7 7H2O
]
7/25/2019 De Thi Hoc Sinh Gioi Mon Hoa Lop 10 Va Dap An
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tAc ' phn Mng chm)8 ]Zng p sN6t (9`ng cch th@i lin tfc 1O 2%& hLng h Bc nRn V p sN6t cao %&ol} phn Mng)8 \c tc hLng nh hBVng !n s? chNyn i cn 9`ng* nhBng gip phn Mng nhanht !n ti :DOyl& cLng thMc c5a
( ") 2:DOy 2yH21O4 :D2(1O4)2yJ 2y H2On ny
(2) 2:DOy (K2y) H21O4 :D2(1O4)7 (72y) 1O2 ( K2y) H2On n (7y)
]hDo gi thi!t 3 n(7y) j "*2 ny 2*2 7
y 7 4= = l& :D7O4
)1#("*GGG*G)
C*+ -V ( 4 im)"8 ] Nng [ch H21O4/.q (Ij "*.4 g8mU") %& Nng [ch HCl ~* t
7/25/2019 De Thi Hoc Sinh Gioi Mon Hoa Lop 10 Va Dap An
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H21O4* saN cho t t %&o 9nh chMa nB-c hN6y SN8 Wi Nng [ch H 21O4tht ngN'i* ong 4G mU Nng [ch HCl ~ thm %&o 9nh* saN thm nB-c%&o cho !n %ch 2GG mU
2 hB$ng t