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The law of conservation of mass in chemical reactions

The law of conservation of mass in chemical reactions

Item no.: P1134300

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Principle

This experiment confirms the law of conservation of mass by the precipitation of calcium carbonate in the vessel according to Landolt. For this experiment two solutions with the starting material  are filled separately into two limbs of a vessel.  Afer that the vessel is sealed and weighed. To confirm the law of conservation ot mass both solutions are mixed together and a precipitation reaction can be observed. By weighing the vessel again, students realize that there is no change in the mass.

 

What you can learn about

  • Law of conservation of mass
  • Precipitation reaction
  • Landolt vessel

 

Device Name Item no. Qty
PHYWE power supply, universal DC: 0...18 V, 0...5 A / AC: 2/4/6/8/10/12/15 V, 5 A 13504-93 1,00
Reducing valve f.oxygen 33482-00 1,00
Weather monitor, 6 lines LCD 87997-10 1,00
Copper, powder 100 30119-10 1,00
Clamp f.ground joint,plastic,NS19 43614-00 2,00
Rubber tubing, i.d. 6 mm 39282-00 2,00
Retort stand, h = 750 mm 37694-00 1,00
Long-neck fl.bott.flask250ml,PN29 36321-00 1,00
Connecting cord, 32 A, 500 mm, red 07361-01 1,00
Teclu burner, DIN, natural gas 32171-05 1,00
Calcium chloride 6-hyrdr. 1000 48020-70 1,00
Hose clip f.12-20 diameter tube 40995-00 2,00
Rubber stopper, d=22/17 mm, without hole 39255-00 2,00
Reaction vessel, landolt, SB 19 36811-00 1,00
Crucible tongs, 200 mm, stainless steel 33600-00 1,00
Support base DEMO 02007-55 1,00
Teflon sleeve IGJ 19, 10 pcs 43616-00 1,00
Wrench for steel cylinders 40322-00 1,00
Right angle boss-head clamp 37697-00 4,00
Glass tube,right-angled, 10 pcs. 36701-52 1,00
Connecting cord, 32 A, 500 mm, blue 07361-04 1,00
Porcelain boats, 10 pcs 32471-03 1,00
Sodium carbonate 10-hydr. 500 48309-50 1,00
Table stand for 2 l steel cylinders 41774-00 1,00
Rubber stopper 26/32, 3 holes 7 mm + 2 x 1,5 mm 39258-14 1,00
Test tube, 160 x 16 mm, 100 pcs 37656-10 1,00
Combustion tube, 300 mm, quartz, ns 33948-01 1,00
Support rod, stainless steel, l = 600 mm, d = 10 mm 02037-00 2,00
Water, distilled 5 l 31246-81 1,00
Nickel electrode,d 3mm,w.socket 45231-00 2,00
Gasometer 1000 ml 40461-00 2,00
Universal clamp 37715-00 4,00
Glass tube, straight, l=80 mm, 10/pkg. 36701-65 1,00
Petroleum ether, 40-60 °C, 500 ml 30184-50 1,00
Spoon, special steel 33398-00 1,00
Steel cylinder oxygen, 2 l, filled 41778-00 1,00
Safety gas tubing, DVGW, sold by metre 39281-10 1,00
Test tube rack for 12 tubes, holes d= 22 mm, wood 37686-10 1,00
Connecting tube IGJ 19/26-GL 18/8 35678-01 2,00
Iron wool 200 g 31999-20 1,00
Cristallizing dish, boro3.3, d = 125 mm 46244-00 1,00
Tweezers,straight,blunt, 200 mm 40955-00 1,00
Lighter f.natural/liquified gases 38874-00 1,00
Stopcock,3-way,t-shaped, glass 36731-00 1,00
Sea sand, purified 1000 30220-67 1,00

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