Chimie physicale, Propriéte de la Matière

 
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Osmose - pression osmotique en fonction de la concentration

Objectifs Pédagogiques
  • osmose
  • pression osmosmotique
  • Concentration

 

 
Détails

Numéro d´article: P1135700

Enthalpie et entropie en tant que forces motrices des réactions chimiques

Principle

The experiment examine the terms enthalpy and entropy as the main forces of chemical reactions. Students perform the reaction of zinc and hydrochloric acid as an example of an exothermic reaction. The heat, which is developed by the raction, is measured with a thermometer. The ...

 
Détails

Numéro d´article: P1136300

Production of métallic alloys

What you can learn about
  • Preparation of alloys
  • Brass and bronze
  • Alloys are mixtures not compounds
 
Détails

Numéro d´article: P1143901

Mt 6.1

Principle

The suitability of a U-tube partially filled with liquid as an instrument for measuring pressure (manometer) it is to be demonstrated.

 

Benefits

  • Optimised for demonstration experiments: Transformation from horizontal into vertical direction
  • Very good visibility: Big ...
 
Détails

Numéro d´article: P1296700

Mt 6.2

Principle

The dependence of the hydrostatic pressure on the depth of immersion h and on the density ρ of a liquid, and the relationship between the pressure p and the quantities h and p, are to be demonstrated.

Benefits

  • Optimised for demonstration experiments: Transformation from ...
 
Détails

Numéro d´article: P1296800

Mt 6.3

Principle

lt is tobe proved, that the heights of a (homogenous) liquid in vessels which are connected to each other are the same.

The principle of the water-level will then be demonstrated.

 

 
Détails

Numéro d´article: P1296900

Mt 6.4

Principle

The principle of how a hydraulic system functions is to be worked out on the basis of a model of a hydraulic press.

 
Détails

Numéro d´article: P1297000

Mt 6.5

Benefits
  • Optimised for demonstration experiments: Transformation from horizontal into vertical direction
  • Very good visibility: Big devices on uniform background
  • Strong Magnets (at least 10 N) allow a safe mounting and therefore a very easy handling
  • Magneto-adhesive measuring scale ...
 
Détails

Numéro d´article: P1297100

Mt 6.7

Principle

lt is to be shown, how the density of solid and liquid substances can be determined from a measurement of the buoyancy.

 

Benefits

  • Optimised for demonstration experiments: Transformation from horizontal into vertical direction
  • Very good visibility: Big devices on ...
 
Détails

Numéro d´article: P1297300

Mt 6.8

Principle

The behaviour of the speeds at which water flows out of a vessel through outlets at various heights is to be examined.

 
Détails

Numéro d´article: P1297400

Mt 6.10

Principle

An enclosed amount of gas is to be compressed by the pressure of a plunger, and an investigation is to be made as to which relationship thereby exists between the pressure of the gas and the pressure force acting on a defined area.

 

Benefits

  • Optimised for demonstration ...
 
Détails

Numéro d´article: P1297600

Détermination de la masse molaire d'un liquide

Principe de l'expérience

La masse molaire d'un liquide est à déterminer par évaporation à température et pression constante et mesure du volume de la vapeur générée à l'aide d'une seringue à gaz ...

 
Détails

Numéro d´article: P3010501

Détermination du poids moléculaire d'un polymère par mesure de viscosité intrinsèque



Principle

The viscosity of a liquid is effectively determined by the strength of the intermolecular attractive forces. In the case of solutions, the viscosity of the solvent can alter significantly depending on the type and concentration of the solute. Due to their size, ...

 
Détails

Numéro d´article: P3010601

Détermination de l?enthalpie de vaporisation des liquides

Principle

The vaporisation of a liquid occurs with heat absorption. To determine the enthalpy of vaporisation, a known mass of the liquid which is to be investigated is vaporised in a special vaporisation vessel in a current of air. The quantity of heat absorbed, which corresponds to the ...

 
Détails

Numéro d´article: P3020461

Volumes partiels molaires

Principe de l'expérience

Suite aux interactions intermoléculaires, le volume total d'un mélange de deux liquides réels (p.e. éthanol et eau) n'est pas égal à la somme calculée des volumes individuels. On observe des déviations qui ...

 
Détails

Numéro d´article: P3020501

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X-ray expert unit

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Plus d'informations