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Samenvatting - Scheikunde Chemie - 5 Havo - H8 -, ISBN: 9789006078718 Scheikunde $4.78   Add to cart

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Samenvatting - Scheikunde Chemie - 5 Havo - H8 -, ISBN: 9789006078718 Scheikunde

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Samenvatting - Scheikunde Chemie - 5 Havo - H8 -, ISBN: 8718 Scheikunde Hierin komt voor: - Zuren - Basen - OH- - H+ - Neerslagreacties

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  • No
  • H8
  • November 10, 2021
  • 4
  • 2021/2022
  • Summary
  • Secondary school
  • 5
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Scheikunde samenvattingen
Hoofdstuk 8 - Basen
Paragraaf 8.1 - Basen in water

Oplossing is basisch als => Ph > 7

→ Basische en zure oplossingen geleiden beide elektrische stroom
→ Bij basen kan dit aangetoond worden als er OH⁻ ionen aanwezig zijn


Moleculaire stoffen geleiden stroom niet. → Toch geleiden sommige (zoals ammonia) wel
stroom.
→ Dit komt doordat een ammoniakmolecuul een H⁺-ion opneemt van water, waarbij
een OH⁻-ion en een NH4⁺-ion ontstaan

Basen nemen een H⁺-ion op in water
Zuren staan een H⁺-ion af in water



Oplossing van Triviale naam Naam Formule

NaOH Natronloog Hydroxide-ion OH˗

KOH Kaliloog Oxide-ion O²⁻

Ca(OH)₂ Kalkwater Carbonaation C0₃ ²⁻

Ba(OH)₂ Barietwater Waterstofcarbonaation HCO₃⁻

Ammoniak NH3


Paragraaf 8.2 - pH berekenen van basen

Verband tussen de pH en de [H⁺] van zure oplossingen:

pH = -log [H⁺]
[H⁺] = 10^-pH

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