1 2011 - . - www.guezouri.org :
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- 16 - 17 - 01 2 2H O ( ), K I+ . 1 :( ) ( ) ( ) ( ) ( ) 2 2 2 22 2
2aq aq aq aq lI H O H I H O ++ + = + .2 .3 0 t = . 4 5 6 ( ) x ft =
.) ( 02 0 t = 20mL ( )22 82 , K S O+ 10, 25 . mol L80mL ( ), K I+
10, 2 . mol L. . 5mL 40mL ( )22 32 , Na S O+ 10, 025 . C mol L= EV
. 1 - 2 :2/ I I 2 22 8 4/ S O SO 2 24 6 2 3/ S O S O 3 ( )EV ft
=
( EV 44 t mn = ( . ( .4 0 t = .
03 4 8 2C H O ( ), Na OH+ . ( ) ( )4 8 2 3 2 5, , C H O Na OH CH
COO Na C H OH+ ++ = + 0 t = 100mL . : 0C . 2 120 . .OHmS m mol
=
2 15 . .NamS m mol += 32 14,1 . .CH COOmS m mol =1 - 2 . ( ), K
I+
2 2H O( ), K I+
2 2H O111 . C mol L =110, 5 . C mol L=120, 6 . C mol L =120, 5 .
C mol L=150 V mL =120 V mL =150 V mL =220 V mL = 27 20 13 9 5 0 ( )
t mn 2,40 ( ) G mS0,91 1,48 1,60 1,78 1,92 2,10 2,50 ( )1. mS cm (
) x mmol( )EV mL( ) t mn20 4 23 0C4 - 000tx C V = : 0 : 0 t = . f :
.
t : .5 ( ) x ft = .6 .
04 - m 100 V mL = 2 15 10 . C mol L = . 244,8HV mL = . :2/ Mg
Mg+3 2/ H O H+. 1 .2 .3 m . - 50, 4mg 100mL 10mL 18 . mol L . 20 C
. :1 - .2 - .3 80 t s = 4 ( ) x ft = .5 ( ) x g t = ( ) x h t = :-
20 C . - 40 C . 122, 4 .MV L mol= 124 .MgM g mol= 8, 31 R SI =
05 - 1100 V mL = 2 2 4H C O 110, 08 . C mol L= 2100 V mL = 120,
02 . C mol L= . :2 2 2 2 4, / COH O H C O2 32 7/ Cr O Cr +.1 - .2 -
3 - 3Cr + ( )3Cr ft+ = ) - 1 . ( ( 3Cr + 0 t = . ( . ( .
- 24/ MnO Mn + 3100 V mL = 130, 02 . C mol L= . 1 - - .2 - 3 -
2Mn + ( )2Mn g t+ = ) - 2 (( . ( .t (s)01020304050607080 P ( 105
Pa)1,10 1,13 1,24 1,34 1,41 1,48 1,54 1,60 1,65( ) x mol ( )3 1. Cr
mmol L+ ( ) t s20 4 - 12Mn + t - 2
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