Determination of molar masses via a measurement of the boiling point elevation (ebullioscopy) Principle Didactic setup to train and demonstrate the determination of molar masses by way of a measurement of the boiling point elevation. The boiling point elevation of aqueous solutions of different substances is determined using. The ebullioscopic constant of water is calculated from the experimental results.
Benefits - Compact, easily transportable setup
- Experimentation made easy by intuitive operation
- For both demonstration and student experiments
Tasks - Determine the boiling point elevation of aqueous solutions of different substances.
- Calculate the ebullioscopic constant of water from the experimental results.
Learning objectives - Molar mass
- Boiling point elevation
- Ebullioscopy
- Ebullioscopic constant
Necessary accessories - Precision balance 620g/0.001g
|
Retort stand, h = 750 mm
|
37694-00
|
1
| |
Right angle boss-head clamp
|
37697-00
|
3
| |
Universal clamp
|
37715-01
|
3
| |
Apparatus for elevation of boiling point
|
36820-00
|
1
| |
Temperature meter digital, 4-2
|
13618-00
|
1
| |
Sheath Thermocouple, NiCr-Ni, Type K, -40°C ... +1000°C
|
13615-06
|
1
| |
Protective sleeves f.temp.probe,2
|
11762-05
|
1
| |
Round-bottom flask, 250 ml, GL 25
|
MAU-27220002
|
1
| |
Beakers, Boro, high form, various sizes
|
46027-00
|
1
| |
Gasket for GL25, 8mm hole, 10 pcs
|
41242-03
|
1
| |
Silicone tubing, various diameters
|
39296-00
|
1
| |
Mortar with pestle, 150 ml, porcelain
|
32604-00
|
1
| |
Pinchcock, width 15 mm
|
43631-15
|
1
| |
Microspoon, steel
|
33393-00
|
1
| |
Wash bottle, plastic, 500 ml
|
33931-00
|
1
| |
Pellet press for calorimeter
|
04403-04
|
1
| |
Heating mantle f. roundbottom flask, 250ml
|
49542-93
|
1
| |
Clamp for heating mantle
|
49557-01
|
1
| |
Power regulator
|
32288-93
|
1
| |
Weighing dishes, square shape, 84 x 84 x 24 mm, 500 pcs.
|
45019-50
|
1
| |
Funnels (glass), Boro, various sizes
|
34459-00
|
1
| |
Pasteur pipettes, 250 pcs
|
36590-00
|
1
| |
Rubber caps, 10 pcs
|
39275-03
|
1
| |
Boiling beads, 200 g
|
36937-20
|
1
| |
Exsicator, DURAN®
|
34130-00
|
1
| |
Porcelain plate f.desiccator150mm
|
32474-00
|
1
| |
Watch glass, dia.80mm
|
34572-00
|
1
| |
Glycerol, 250 ml
|
30084-25
|
1
| |
Urea, 250 g
|
30086-25
|
1
| |
Hydroquinone 250 g
|
30089-25
|
1
| |
Water, distilled 5 l
|
31246-81
|
1
| |
Universal power supply, 600mA 3/4.5/5/6/7.5/9/12V, incl. 9 adaptors
|
11078-99
|
1
| |
Service
