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1 eff 2 ) , L (m) , K (m) 1G eff

ΓΪΣϮϟ΍07 ΔϴϠϗΎϨϟ΍ αΎ˰˰ϴϗ

GUEZOURI Aek - Lycée Maraval - Oran

SKL LSS 1 G 2 L (

NaCl ˰ϟ ϭ΃ ˬ KOH(

-1 GK ABCD ABCD

ϦϴΑ10

-3 mol . L -1

ϭ 10

-2 mol . L -1 3 Ε΍ΪΣϮϟ΍ : : S. m -1 : S. m 2 . mol -1 @A ˬ Bˬ C D : mol / m 3 2 1 - 2 2 - 2+

ϭ OH

3 - 2 Ca OH 2 21

12 . .

Ca mS m mol 21

19,8 . .

OH mS m mol 1 -

Ca(OH)

2 Ca 2+ + 2 OH 1

0,370,01 .74 0,5mC mol LMV

21

0,01 .Ca C mol L

1

2 0,02 .OH C mol L

3 - ΔϴϋϮϨϟ΍ ΔϴϠϗΎϨϟ΍

22
2 2

Ca OH Ca OH

Ca OH C C

2 2 Ca OH C

23 3 1

10 10 12 2 19,8 10 0,516 .Sm

uuu u , Cl ) (K , Cl 0 = 1,00 10 -2 mol.L -1 C 1 = 5,00 10 -3 mol.L -1 C 2 = 2,00 10 -3 mol.L -1 C 3 = 1,00 10 -3 mol.L -1 U eff 4 eff = 2 V ˮ eff eff eff I eff eff eff

3 - ϲϧΎϴΒϟ΍ Ϣγήϟ΍

G = f (C)

S: G S = 0,91 mS Ϯϫϭ ˬ C S = 6,7 mmol . L -1

S Ϯϫ C'

S = 10 6,7 10 -3 = 6,7 10 -2 mol . L -1 1

ˬ S

2

ˬ S

3

ΔϴϟΎΘϟ΍ Ρϼϣϸϟ ΰϴϛήΘϟ΍ ΔϳϭΎδΘϣ : NaCl ˬ KCl ˬ KNO

3

1,16 mS ˬ , 1,37 mS 1,33 mS .

NaNO 3

2 - ΐδΣ΍

G (Na , NO 3- C S

1 2 5 10 C (mmol.L

0,15 0,28 0,70 1,31 I

eff (mA)

C (mmol.L

5 1 - S 1 : NaCl Na + Cl 2 : KCl K + Cl 3 : KNO 3 K + NO 3- 3 Na + NO 3- 1

1Na Cl Na Cl

GK K Na Cl KC

2KCl KCl

GK K K Cl KC

3 KNOC 33

33KNO KNO

G K K K NO KC

3

Na NO C

33

3Na NO Na NO

GK K Na NO KC

3

ClNa NO K K Cl

GKC 3

Na Cl K Cl K NO

GKC KC KC

123
GGGG Na , NO 3- 2 - 123

1,16 1,37 1,33 1,12 GGGG mS

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