avagadro law

avagadro law - Since 1 molecule of hydrogen bromide...

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6.6 Avogadro’s Law Avogadro’s Law states that "equal volumes of different gases under the same conditions of temperature and pressure contain an equal number of molecules." Applications of Avogadro’s law : a) To find out the atomicity of gases : (number of atoms within a molecule ) Consider formation of hydrogen bromide Hydrogen + Bromine Hydrogen bromide 1 vol 1 vol 2 vol (experimentally found) \ n molecules n molecules 2n molecules (Avogadro’s law) \ ½ molecule ½ molecule 1 molecule (Dividing everything by 2n)
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Unformatted text preview: Since 1 molecule of hydrogen bromide contains only one atom of hydrogen ½ molecule of hydrogen contain one atom of hydrogen. \ 1 molecule of hydrogen contains 2 atoms of hydrogen. \ H 2 is diatomic gas and represented by formula H2 Similarly the formula for Chlorine is Cl In the same way by considering the reaction such as Hydrogen + Oxygen → Steam 2 vol 1 vol 2 vol & Nitrogen + Hydrogen → Ammonia 1 vol 3 vol 2 vol It can be concluded that molecular formula of oxygen gas is O 2 and that of nitrogen is N2...
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This note was uploaded on 07/31/2011 for the course CHEM 102 taught by Professor Henshaw during the Spring '08 term at VCU.

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avagadro law - Since 1 molecule of hydrogen bromide...

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