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. & fax: 210-2460185 : .
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mol
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. mol
(
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:
% w/w. %w/v. %v/v.
Molarity (M). .
-
(CH3COOH), 0,1M).
, (NaOH
: CH3COOH + NaOH
CH3COONa + H2O pH (3-4
.. )
pH
-
CH3COOH
CH3COO . CH3COO2
) ,
8,0
8,5.
pH
.
pH
pH
8,3
. , 0,001 ,
NaOH.. mol
mol
CH3COOH.
0,1 250mL 10mL
(
)
100mL
(
).
, 250mL.
, 250mL. 250mL. 50mL
5mL
, ,
.
. .
3
.
: .............................................. : .................
(ml)
: ....................
Mol NaOH (n = CV)
Mol CH3COOH
1 2 3
mol n=m/Mr
: m=n. Mr
60
m = n.
% w/v = m.(100/5 * 5)
: ………………..
%w/v
1.
; ………………………………………………………………………………… …………………………………………………………………………………
2.
,
pH
,
7 ; …………………………………………………………………………………. …………………………………………………………………………………. 3.
; …………………………………………………………………………………. ………………………………………………………………………………….
4