Determination of Faraday's constant Principle Faraday's laws of electrolysis describe the correlation between the amounts of substances transformed in the reactions at the electrodes and the charge applied (amount of electricity). Faraday's constant, which appears as a proportionality factor, can be determined experimentally from the dependence. Benefits - Standard experiment in introductory physics and chemistry
- Failsafe and elegant determination of an important natural constant
- Excellent for the introduction of refractometry
Tasks Determine Faraday's constant from the dependence of the volumes of hydrogen and oxygen envolved on the charge applied in the hydrolysis of dilute sulphuric acid. Learning objectives - Electrolysis coulometry
- Charge
- Faraday's laws
- Avogadro's number
- General equation of state for ideal gases
Necessary accessories - Precision balance 620g/0.001g
|
PHYWE Power supply, universal, analog display DC: 18 V, 5 A / AC: 15 V, 5 A
|
13503-93
|
1
| |
Water decomposition apparatus according to Hoffmann, incl. tripod
|
MAU-25014002
|
1
| |
PHYWE Digital multimeter, 600V AC/DC, 10A AC/DC, 20 MΩ, 200 µF, 20 kHz, −20°C…760°C
|
07122-00
|
1
| |
On/off switch
|
06004-00
|
1
| |
Connecting cable, 32 A, blue, various lengths
|
07362-04
|
1
| |
Connecting cable, 32 A, red, various lengths
|
07361-01
|
1
| |
Connecting cable, 32 A, red, various lengths
|
07360-01
|
2
| |
Right angle boss-head clamp
|
37697-00
|
2
| |
Universal clamp
|
37715-01
|
2
| |
Digital stopwatch, 24 h, 1/100 s and 1 s
|
24025-00
|
1
| |
Weather monitor, 6 lines LCD
|
87997-10
|
1
| |
Beakers, Boro, low form, various sizes
|
46056-00
|
1
| |
Pasteur pipettes, 250 pcs
|
36590-00
|
1
| |
Rubber caps, 10 pcs
|
39275-03
|
1
| |
Funnels (glass), Boro, various sizes
|
34459-00
|
1
| |
Wash bottle, plastic, 500 ml
|
33931-00
|
1
| |
Sulphuric acid, 95-97%, 500 ml
|
30219-50
|
1
| |
Water, distilled 5 l
|
31246-81
|
1
| |
Service
