Product details

Avogadro's law

Avogadro's law

Item no.: P3111000

Difficulty Expenditure of Time print
  • Description
  • Scope of Supply
  • Accessories
  • Downloads and Documents

Principle

In 1811, Avogadro stated his hypothesis that under the same conditions of pressure and temperature, equal volumes of all gases contain equal numbers of components (molecules, atoms). He derived this from the uniformity of the behaviour of (ideal) gases on increases in temperature and pressure (see the Gas Laws) and the Law of Volumes. When Avogadro's supposition is correct, then 6 parts by volume of CO and 3 parts by volume of O2 must form 6 parts by volume of CO2 when pressure and temperature are the same before and after the reaction. Similarly, at a temperature a little above 100°C, a gas mixture containing 6 parts by volume of H2 and 3 parts by volume of 02 must give 6 parts by volume of steam, and a mixture containing 5 parts by volume of H2 and 5 parts by volume of Cl2 must give 1 0 parts by volume of HCI. In the following experiments we will carry out the reactions named above to test the correctness of the hypothesis.

Benefits

  • Safe and controlled test procedure by slow eudiometer
  • Practical gas bar for storing the gases
  • Special heater for glass jacket for optimal temperature control

Tasks

Perform the following reactions to verify Avogadro's law:

  1. Preparation of carbon monoxide and chlorine
  2. The carbon monoxide/oxygen reaction
  3. The hydrogen/oxygen reaction at above 100°C
  4. The hydrogen/chlorine reaction at above 100°C

What you can learn about

  • Avogadro's law
  • Gas laws
  • Carbon monoxide
  • Hydrogen
  • Chlorine
  • Oxygen

Necessary accessories

  • Precision balance 620g/0.001g

 

 

Device Name Item no. Qty
Retort stand, h = 750 mm 37694-00 1,00
Spoon, special steel 33398-00 1,00
Connecting cord, 30 kV, 1000 mm 07367-00 2,00
Ignition spark generator 11155-00 1,00
Support rod, stainless steel, l = 250 mm, d = 10 mm 02031-00 2,00
Hose clip f.12-20 diameter tube 40995-00 2,00
Lab thermometer,-10..+150C 38058-00 2,00
Round bottom flask, 100ml, GL 25/12 35841-15 1,00
Teclu burner, DIN, natural gas 32171-05 1,00
Plunger eudiometer 02611-00 1,00
Beaker, 250 ml, high-form 46027-00 1,00
Lab protecting glasses with UV filter 39315-00 1,00
Reducing valve f.oxygen 33482-00 1,00
Formic acid 75% 250 30023-25 1,00
Hydrochloric acid 37 %, 1000 30214-70 1,00
Support rod, stainless steel, l = 600 mm, d = 10 mm 02037-00 2,00
Table stand for 2 l steel cylinders 41774-00 2,00
Lighter f.natural/liquified gases 38874-00 1,00
Funnel for gas generator, 50 ml, GL18 35854-15 1,00
Heating apparatus for glass jacket system 32246-93 1,00
Gas syringe, 100 ml 02614-00 1,00
Wrench for steel cylinders 40322-00 1,00
Right angle boss-head clamp 37697-00 3,00
Reducing valve for hydrogen 33484-00 1,00
Sulphuric acid, 95-98% 500 ml 30219-50 1,00
Syringe 10ml, Luer, 10 pcs 02590-03 1,00
Steel cylinder hydrogen, 2 l, full 41775-00 1,00
Safety gas tubing, DVGW, sold by metre 39281-10 1,00
Graduated vessel, 1 l, with handle 36640-00 1,00
Power regulator 32288-93 1,00
Glass jacket 02615-00 1,00
Support base DEMO 02007-55 1,00
Gas bar 40466-00 2,00
Universal clamp 37715-00 3,00
Funnel, glass, top dia. 50 mm 34457-00 1,00
Water, distilled 5 l 31246-81 1,00
Cannula 0,45x13 mm, Luer, 20 pcs 02598-04 1,00
Steel cylinder oxygen, 2 l, filled 41778-00 1,00
Silicone tubing i.d. 7mm, 1 m 39296-00 2,00
Boiling beads, 200 g 36937-20 1,00
Base plate for support base DEMO 02007-01 1,00

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