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HVC

The document discusses the acidity of various hydrides and their chemical properties, focusing on the trends in acidity based on the bonding strength and polarity of H-X bonds. It outlines the order of increasing acidity among different hydrides and provides examples of chemical reactions involving these compounds. Additionally, it touches on the characteristics of central atoms in relation to their group and period in the periodic table.

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lyquanghuy61
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8 views2 pages

HVC

The document discusses the acidity of various hydrides and their chemical properties, focusing on the trends in acidity based on the bonding strength and polarity of H-X bonds. It outlines the order of increasing acidity among different hydrides and provides examples of chemical reactions involving these compounds. Additionally, it touches on the characteristics of central atoms in relation to their group and period in the periodic table.

Uploaded by

lyquanghuy61
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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F

↑
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· e e
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-
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E S M
T
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u T &
i
· .
Yo *
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Cu ?:

a H20 HzS HzSe Hate dulhop chat CHT


, , , .
b) MnO
, MnzOz MnOz delhopchfion ; MnzOz banchtlfhCHT
,

Nhietto phanhuy cera hop chat CHT Chi cobente CHIT => Mn ,Of c tinh CHT walk loinh at

Chi STDPC
E
Dober CHTYhi Mucting nange M Tick CHT chopchation - macation y

Thetich ven phu X MDBPC cu anion ↑

1
Matctixenphu'T Cynt quantrognhat) MnO , MnzOz MnOz c cing anion
,
=> XeF TDP(cuacation

S
Hate He HS Ho
#Parcation thi at / (yeutoquantrongnhat) .

Mucci drig nang r


+
1

the rich ven phu" Che : d'od...do


7
Mat co xemphu 12/
" +3
=> Hoben tinhe CHT Hate <HiSe < H2S < H20 : Mut Mu Mu
+ 2

=>
tophanhuy tang dantheothitu HTe HaSe HzS :
, , , H20 + 4 + 3 + 2

=>
TDPC au Mnt" > Mn 3
+
cMatz

=> Tirh CHT ca MnOz > MnLOs > MnO

Kethan : Tick CHT gian dan theothe Hi Mn 207 MnOz MnzOz ,


, ,
MnO

Cu2 :

C2+ ga- Caf


+

as
- Cust c)
+
OH +
HCO3 -
CaCOz + +
H0
d> Mg 20H- Mg(OH)2
+
b) CeFz +
H20 >
-
5HF + H +
ClO3- + -

Can3 :

HzS HiSe , ,
HI ,
HBr are all hydracids .

The acidity of hydracids increases when


E
: the polarity of H-X bonding

the bonding strength of H-X decreases


increases
(X = S Se I
, , , Br)

# Central atoms are in same


group
: the bonding strength of H-X is more
important than the

polarity of H-X bonding


+ S and Se are in
group VIA7 From the top to bottom the radius
,
of central atom increases

+
Brand I are in
group VIAOverlappiesareaincreases Electrondensitydecreaseeases
=>
[Acidity of Acidity
of Mese is stronger than hS
HI is
stronger than HBr
↓ Central atoms are in same
period : the polarity of H-X bond is more
important than the
bonding Strength of H-X

++ Se and Br are in period 4 .


From the left to right ,
the electronegativity of central atom increases

=> Polarity of H-X bond increases =>


Acidity of M-X increases => Acidity of HBr is strongerthan HSe

CONCLUSION : The order of increasing acidity : H2S , HSe ,


MBr , HI

Cu4 : Cu5 :
Fest +
CHPO- >
FePOut +
HzPOn Kob A cid : Fez(SOn's MzS My NOz , ,

(HPOR2 =O
[H2POn]
Kob =
Baz :
Khongc
[H2POn]
+
[Fe3
-
-
-

3
Trungtinh : KC , K.SOy Calz ,

1
E ]
=

* [H 2
Long tinh : NazHPOu CHzCOONHy MaMCOs MO , , ,

(Trepoy)
-

= =
Kazkaz * (Kaz)
* - 7 38
1822) (10 7 21) 1812
-

(1
,

=
,
3 .
x x

72
~ 1016 ,

K
*= 10 = 10 Kock* Phanvng hantin a

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