Ammonia

Descrição

2019 sec 3 chem example
Nabilahbanu .
Mapa Mental por Nabilahbanu ., atualizado more than 1 year ago
Nabilahbanu .
Criado por Nabilahbanu . mais de 5 anos atrás
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Resumo de Recurso

Ammonia
  1. bonding and structure
    1. covalent bonding
      1. simple molecular structure
        1. low boiling point
          1. Little energy needed to overcome weak intermolecular forces
      2. collection and drying of gases
        1. less dense than air, soluble and alkaline gas
          1. test for gas: turns moist red litmus blue
            1. collect gas using upward delivery or gas syringe
              1. dry using fused calcium chloride or calcium oxide
            2. Alkali
              1. Ammonium salts
                1. used as fertilisers
                2. diffusion
                  1. Ammonia has lower Mr of 17 than HCl (Mr = 35.5), so it diffuses faster
                    1. Diffusion is the constant random movement of gas from region of higher conc to region of lower con

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