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Hydrogen in the redox series: normal hydrogen electrode

Hydrogen in the redox series: normal hydrogen electrode

Item no.: P1148400

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Principle

The redox series is one of the most important tools in "electrochemistry". The redox series arrange metals according to their efforts to emit electrons. The redox series generally begins with the base metals (e.g., iron, zinc) and goes to noble metals (e.g., gold, silver).

In this experiment students examine the electrochemical potential of the metals. For this purpose, hydrochloric acid is reacted with various metals. Students observed that some metals react with the hydrochloric acid (formation of hydrogen) and some metals not. With this experiment results, students can arrange a (simple) redox series with hydrogen as a reference element. In a second experimental part, a simple normal hydrogen electrode is constructed and the corresponding voltage of redox potentials is measured.

 

Device Name Item no. Qty
Hydrochloric acid, 1.0 mol/l, 48454-70 1,00
Hydrochloric acid 37 %, 1000 30214-70 0,00
Hose clip, diam. 8-16 mm, 1 pc. 40996-02 0,00
Safety gas tubing, DVGW, sold by metre 39281-10 0,00
Pasteur pipettes, 250 pcs 36590-00 0,00
Spoon, special steel 33398-00 0,00
Tubing connector,Y-shape, ID 8-9mm 47518-03 0,00
Water, distilled 5 l 31246-81 0,00
Receptacle for half-cell, PN29 44452-00 0,00
Potassium nitrate 250 30106-25 0,00
Glass rod,boro 3.3,l=300mm, d=7mm 40485-05 0,00
Lighter f.natural/liquified gases 38874-00 0,00
PHYWE Demo Multimeter ADM 3: current, voltage, resistance, temperature 13840-00 0,00
Glass beaker, tall form, 250 ml 36004-00 0,00
Scissors, straight,180 mm 64798-00 0,00
Bar electrode, Zinc, d=8mm, l=100mm 45288-02 0,00
Table stand for 2 l steel cylinders 41774-00 0,00
Lead, granular 250 30040-25 0,00
Rubber tubing, i.d. 6 mm 39282-00 0,00
Glass tube w.hook, 160+15 mm 36701-17 0,00
Connecting cord, 32 A, 500 mm, red 07361-01 0,00
Reducing valve for hydrogen 33484-00 0,00
Caustic soda solution, 1.0 m, 48329-70 0,00
Platinum wire, d 0.3 mm, 100 mm 31739-03 0,00
Weighing dishes, square shape, 84 x 84 x 24 mm, 25 pcs. 45019-25 0,00
Copper, powder 100 30119-10 0,00
Test tube rack, wood, for 6 tubes d= 30 mm 40569-10 0,00
Rubber stopper 26/32, 3 holes 7 mm 39258-03 0,00
Test tube,200x30 mm 36304-01 0,00
Alligator clips, insulated, black, 10 pcs. 07276-15 0,00
Wire gauze with ceramic, 160 x 160 mm 33287-01 0,00
Beaker, 50 ml, high-form 46025-00 0,00
Zinc sulphate 7-hydr. 250 30249-25 0,00
Steel cylinder hydrogen, 2 l, full 41775-00 0,00
Iron powder, techn. 500 30067-50 0,00
Silicone tubing i.d. 7mm, 1 m 39296-00 0,00
Right angle boss-head clamp 37697-00 0,00
Connecting cord, 32 A, 500 mm, blue 07361-04 0,00
Wash bottle, plastic, 500 ml 33931-00 0,00
Silver foil, 150 x150 x 0.1 mm, 25 g 31839-04 0,00
Platinum electrode in protection tube, d = 8 mm 45206-00 0,00
Nitric acid , 65% 1000 30213-70 0,00
Hose clip f.12-20 diameter tube 40995-00 0,00
Rubber caps, 10 pcs 39275-03 0,00
Volumetric flask 1000ml, IGJ24/29 36552-00 0,00
Support rod, stainless steel, l = 600 mm, d = 10 mm 02037-00 0,00
Tripod,ring d=140 mm, h=240 mm 33302-00 0,00
Beaker, 250 ml, high-form 46027-00 0,00
Pinchcock, width 15 mm 43631-15 0,00
Glycerol, 250 ml 30084-25 0,00
Wrench for steel cylinders 40322-00 0,00
Universal clamp 37715-00 0,00
PHYWE power supply, universal DC: 0...18 V, 0...5 A / AC: 2/4/6/8/10/12/15 V, 5 A 13504-93 0,00
Glass beaker, tall form, 50 ml 36001-00 0,00
Precision Balance, Sartorius ENTRIS623-1S, 620 g / 0.001 g 49294-99 0,00
Teclu burner, DIN, natural gas 32171-05 0,00
Contact socket f.bar electrodes 45283-00 0,00
Clay pins, d = 8 mm, l = 15 mm, 2 pcs. 32486-00 1,00

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