HoGent - Analytische chemie - Mnr. Dumont --- Opgeloste examenvragen uit 2015 1ste zit, enkele vragen werden opnieuw gesteld op examen 1ste zit 2018/2019. Zeer goede voorbereiding op het examen!
1) 10 ml H3PO4 (74 m/m %) + 11,6971 g NaOH (87 m/m %) in 990 ml H 2O
a) Algemene formule afleiden voor berekening pH van deze oplossing. Bereken de pH
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b) pH na toevoegen 15,465 g (100%) NaH 2PO4
c) hoeveel ml 6M HCl moet aan de oorspronkelijke oplossing toegevoegd worden om pH = 7,5
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