Stoichiometry: Laws, mole and molecular mass

- Avogadro’s number and atomic mass
- CB-IN-61/EV
  
  Details
  
  As tiny particles like protons and neutrons can be observed very difficultly, it is better to construct some scale models reproducing the atomic and molecular system […]
- Discover
- Determining Avogadro’s number
- CB-IN-59/EV
  
  Details
  
  This kit enables to test the size of the particles included in a certain volume of a substance. This process enables to evaluate Avogadro’s number actually: […]
- Discover
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- Determining the molecular mass of a volatile liquid
- CB-IN-58/EV
  
  Details
  
  This kit enables to determine the molecular mass of a volatile liquid by applying Avogadro’s law. The test enables to determine the molecular mass of a […]
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- Laws of stoichiometry: conservation of mass (Lavoisier)
- CB-IN-63/EV
  
  Details
  
  This kit enables to verify the conditions stated by the law of conservation of mass: the sum of the masses of reactants is equal to the […]
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- Laws of stoichiometry: law of definite proportions (Proust’s law)
- CB-IN-64/EV
  
  Details
  
  This kit enables to verify Proust’s law: the elements of a compound comply with definite and constant weight ratios. This test will show that, although the […]
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- Laws of stoichiometry: law of multiple proportions (Dalton’s law)
- CB-IN-65/EV
  
  Details
  
  This kit enables to demonstrate the law of multiple proportions experimentally: the quantities of an element combining with a constant quantity of another element (to form […]
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- Mole: comparing different substances
- CB-IN-60/EV
  
  Details
  
  This kit enables to compare quantities of different substances containing the same number of particles. Students can observe that the substances contained in the phials have […]
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Stoichiometry: Laws, mole and molecular mass

Avogadro’s number and atomic mass

Determining Avogadro’s number

Any question?

Determining the molecular mass of a volatile liquid

Laws of stoichiometry: conservation of mass (Lavoisier)

Laws of stoichiometry: law of definite proportions (Proust’s law)

Laws of stoichiometry: law of multiple proportions (Dalton’s law)

Mole: comparing different substances