Determining the Faraday constant

Determining the Faraday constant

P3.2.5.1:


In the experiment P3.2.5.1, a specific quantity of hydrogen is produced in an electrolysis apparatus after Hofmann to determine the Faraday constant. The valance of the hydrogen ions is z = 1. The molar mass n of the liberated hydrogen atoms is calculated using the laws of ideal gas on the basis of the volume V of the hydrogen collected at an external pressure p and room temperature T:



Features

Components of equipment sets:
1 664 350 Water electrolysis apparatusLD
1 382 35 Thermometer, -10...+50 °C/0.1 KLD
1 531 832 Digital multimeter PLD
1 521 488 AC/DC power supply 0...12 V/3 ALD
1 500 421 Connecting lead 19 A, 50 cm, redLD
1 500 422 Connecting lead 19 A, 50 cm, blueLD
1 500 441 Connecting lead 19 A, 100 cm, redLD
1 500 442 Connecting lead 19 A, 100 cm, blueLD
1 649 45 Tray, 552 mm x 459 mm x 48 mmLD
1 674 7920 Sulfuric acid, diluted, approx. 2 N (= 10 %), 500 mlLD GHS05 Warning H290 H315 H319