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Samenvatting H7 Zuren en basen en H8 molecuulbouw (Nova Scheikunde 5vwo)

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Deze samenvatting bevat alle onderdelen die in de paragrafen van H7 Zuren en basen en H8 molecuulbouw worden behandeld. Er wordt uitgelegd aan de hand van plaatjes en er zijn voorbeeldopgave's weergegeven.

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Scheikunde TW1 5v H7 & H8
H7: Zuren en Basen
H8: Molecuulbouw

,7.1 Zuren en basische oplossingen
Zure oplossingen (Binas tabel 49)
Een zuur is een deeltje dat een H+-ion (proton) kan afstaan.

,7.1
Basische oplossingen (Binas tabel 49)
Een base is een deeltje dat een H+-ion kan opnemen.

, 7.1
Watermoleculen kunnen dus een H⁺-ion afstaan als opnemen. Ze zijn dus zowel een
zuur als een base; ze kunnen met elkaar reageren;
Er staan alleen gasvormige of opgeloste
stoffen in de evenwichtsvoorwaarde; dus deze
wordt:

De waterconstante Kw = [H3O+] = [OH-] = √1,0 x 10-14 = 1,0 x
10-7 mol/L-




pH-waarde: pOH-waarde:
pH = -log[H3O+] en dus [H3O+] = 10-pH pOH = -log[OH-] en dus [OH] = 10-pOH

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Hoofdstuk 7 zuren en basen en hoofdstuk 8 molecuulbouw
Uploaded on
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Number of pages
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Written in
2022/2023
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