تفاعلات الأسترة والحلمأة

ELGHZIZAL’SCRIBD DOCUMENTS

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@ @ @ @

      (I %& . "#   ! –OH        :   ( 11 : , -&# ()( *+  R-OH    '

3   4- *+ (-ol ) " - (soufixe)  ) . + / 0 1. 2     "  * -  .  2 / * " 3 : (#

-COOH : 76 *    56 . :    (21 R-COOH   8  ' %&  #- 2# * 0 1. 2        *

oïque 9  ) 2       

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ELGHZIZAL’SCRIBD DOCUMENTS

:   -# (31   -# * "& - 700°C 7    ;  <3 "6     2:        -# * -=   ' / 0 1. : * "& - 9- (>   -  9- (> -#

> (41  ' 4%&  ' 4%&     : 2? 2 > * (oate)" "  )  " 9 "  ) '    + 2 1? : "  1?
.2  7  !     1. : - ( 1?
: (#

7=  78   (II 2

ELGHZIZAL’SCRIBD DOCUMENTS

!' . "' "#6>  # /-& :  ! ?- (12 9- (>  2 30ml A6( #6> "   ,' )"- -6> 2 20ml 6 9  21ml (3grains de pierre ponce ) C-  2   3 ( Le chauffage à reflux) : /  2:   ( 7   /. 2 3)!-) "   /. 2 2 0- .1 E- # )  D  2 "  6 - .2

/  2:

2: "' C-    . C- 

5  :F < ! : 2!

: "   '



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ELGHZIZAL’SCRIBD DOCUMENTS

! "6 - -  9 G 7.   :( )  - ) ' 1. "'2 # ;  . 0-  2 "  2 "4# ;  /   " - 2 5  ! 2 <' ;  . -  "3#   2  5  ! . ( 7 6 H  ;  "6'  4 A  -. "  -  . < ' ;  2 H  "  

Xmax = 0,184mol = Xester (max) 0- "    I "  Vest = 21,5ml :     2 0 "&   

*+ <J "  /   "   7  : &): C' "     56 "   ;  # 6 C- 2  2# E-- ;  / # "   7=  .!? C- . 2 (  26  *+ ' *+ 2 J 2  ' 2 - . 2 (  2 -6 2)  7=  7  "  5 

7=  7  "  "): 5  26    6> (III

:  ! ?- (13

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ELGHZIZAL’SCRIBD DOCUMENTS

: *     20°C - "- (> 2 1mol  9- (>  2 1mol  . A6- : 7  (36mol.l-1) 6 9  2 2ml : H3O+ 2# 6    20°C - ! ;  2  1mol "(> - (+ 2 1mol  . A6- : 7  (36mol.l-1)6 9  2 2ml "? *(H3O+ 2# ) 6  ( !" ‫ ا‬# ‫ ا آ*ت ا (یة داﺥ ا‬+! ‫"ظ‬- ‫ آ ا     ا    ﺝ ) ا‬

7 ' !: 2 2   !: .   7 ' 9  "  "):   7   / : 2  2- -

:   2 G# K)# (    :  5# . Xmax 3 -  <  !: 7=  7  "  & " (# r "   - τ 5 4-  - ( Xf 3  . 9 " L "     2 "&  "  '!  . 1  "J - 1. "   '   #

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.1 .2 .3 .4

ELGHZIZAL’SCRIBD DOCUMENTS

"   '   5   "  "): 5 4-   M&  

CH3COOC2H5

+

H2 O

(mol) 

n(CH3COOC2H5)

n(H2O)

0 x x = xf x = xmax

1 1– x 1– xf 1– xmax

1 1– x 1– xf 1– xmax


CH3COOH + ‫؟‬ n(CH3COOH)

C2H5OH n(C2H5OH)

0 x xf

0 x xf

xmax

xmax

. Xmax = 1mol : 0- 1-Xmax = 0 - : *&3   - (1 Xf = 0,67mol : 5 4- 3 *+( 7  " )   7   * - : *- - 2 (2 r = 67 % : "   0- τ = Xf /Xmax = 0,67/1 = 0,67 5 4-  -

7   Xmax  4 "&  7   nexp N

r=

nexp nmax

"   ,'-

4 "&  - .    ;! "  "&  "  2O. 1 2 "3# τ 2#  (3 (4

5   5 4-   .   (IV

 - 2 26  *+ 2 J 2 P 2)  Q 7=  7  "  2#  G! K .' 5  "   '.  2O. *&3   - 2 %&# 5 4- .    3 2 /. 5  M  7. "5  " " ' 6   #   !:  -  # (= (14 : -'  ? 1. 5   !    - - "(

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ELGHZIZAL’SCRIBD DOCUMENTS

 .   2 2  "' # " '  K)# (    :  5# L 5   !

:  2 G#

L 5   5 4-   .   2 2  "' # " '  (1 ."L  5 4-   %   !: 6  . + # 7   /. " (2 G  :  )- T4 T3  T2  T1   -  (1 T2  T1 : 7    6    6  T3  T1( 5 4- !: G % 2 ) 6      6    :   K  . ) 7. )   #   - 5 4-   . % N  (2 .90°/° *+ 67°/° 2  "-( . 5   5 4-   % 2# 2  7   /. # 6    2+  (3 τ = 0,67 : 5 4-  - C- 4 7   % # 6   4. ":   - - "

: /0-‫ﻡ‬ ‫ ﻡ‬5‫( ا >ي ﺱ‬Toluène) ‫ی‬0 0 ‫ ا‬67 8 ‫ أن * وﺱ; !  ﻡ ﻡدود ا "! وذ‬5‫ی‬ 5‫ ی‬K   ‫  ا ; ( و‬- ‫ ا‬D5! ‫ا‬E‫را واﺡ‬0H ‫ن‬05‫زی ی‬J ‫  ا‬- ‫? )  ا‬05 ‫ل‬A‫ ا ء ﺥ‬C-‫ﺱ‬ ‫ث‬E-‫ة أن ی‬M- ‫ "! ا‬

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