The equivalent conductivity of strong electrolytes depends on their concentration. The quotient of the equivalent conductivity at a certain concentration and the equivalent conductivity at infinite dilution is called the conductivity coefficient, which is tthe result of interionic action.
Measure the specific conductivities of various potassium chloride and calcium chloride solutions and calculate the equivalent conductivities. Determine the equivalent conductivities at infinite dilution using the Kohlrausch equation and calculate the conductivity coefficients.
| Materiallist (Excerpt) |
Product |
Amount |
|
Set of Analytical Balance Sartorius CPA 224S and measure software, 230 V
|
49221-88
|
1
|
|
Digital conductivity meter
|
13701-93
|
1
|
|
Desiccator, wertex, diam. 150 mm
|
34126-00
|
1
|
|
Conductivity temperature probe Pt1000
|
13701-01
|
1
|
|
Magnetic stirrer Mini / MST
|
47334-93
|
1
|
|
Retort stand, h 750 mm
|
37694-00
|
1
|
|
Silica gel,orange,granular,500 g
|
30224-50
|
1
|
|
Water, distilled 5 l
|
31246-81
|
1
|
|
Silicon grease Molykote, 50 g
|
31863-05
|
1
|
|
Protection sleeve for electrode with a diameter of 12 mm
|
37651-15
|
1
|
|
Porcelain plate f.desiccator150mm
|
32474-00
|
1
|
|
Pipette dish
|
36589-00
|
1
|
|
Potassium chloride 250 g
|
30098-25
|
1
|
|
Calcium chloride, granul. 250 g
|
48021-25
|
1
|
|
Stand.solu.1413æS/cm(25øC), 460ml
|
47070-02
|
1
|
|
Volumetric flask 500 ml, IGJ19/26
|
36551-00
|
2
|
|
Pipettor
|
36592-00
|
1
|
|
Volumetric flask 250 ml, IGJ14/23
|
36550-00
|
6
|
|
Pasteur pipettes, 250 pcs
|
36590-00
|
1
|
|
Spring balance holder
|
03065-20
|
1
|
|
Weighing dishes, square shape, 84 x 84 x 24 mm, 25 pcs.
|
45019-25
|
1
|
|
Support rod with hole, stainless steel, 10 cm
|
02036-01
|
1
|
|
Right angle clamp
|
37697-00
|
4
|
|
Volumetric pipette, 50 ml
|
36581-00
|
2
|
|
Cristallizing dish,boro3.3, 320ml
|
46243-00
|
1
|
|
Volumetric pipette, 25 ml
|
36580-00
|
2
|
|
Rubber caps, 10 pcs
|
39275-03
|
1
|
|
Glass beaker DURAN®,tall, 150 ml
|
36003-00
|
8
|
|
Glass beaker DURAN®, tall, 50 ml
|
36001-00
|
2
|
|
Funnel, glass, top dia. 80 mm
|
34459-00
|
2
|
|
Volumetric pipette, 5 ml
|
36577-00
|
2
|
|
Spoon, special steel
|
33398-00
|
1
|
|
Magnetic stirring bar 30 mm, cylindrical
|
46299-02
|
1
|
|
Wash bottle, plastic, 500 ml
|
33931-00
|
1
|
|
Laboratory Experiments Physics, Chemistry, Biology andApplied Sciences, CD-ROM, incl. operating manuals
|
16502-42
|
1
|
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