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volledig practicum (alle verslagen) van algemene chemie 1e BA
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Jitse Opdebeeck tafelnummer: 521 ANALYSE VAN EEN COMMERCIEEL ANTACIDUM: MAALOX
1.1 SJABLOON VERSLAG
OPMERKING: - Lees de vragen aandachtig!
- - Berekeningen worden als bijlage toegevoegd!
DOEL: In dit practicum wordt er aan de hand van een zuur-basetitratie het neutraliserende effect per gram
commercieel anatcidumtablet bepaald. We maken een analyse van de antacidumtablet door middel van een
terug titratie met NaOH en deze berekende gegevens gaan we vervolgens vergelijken met de gegevens van de
fabrikant.
REACTIEVERGELIJKINGEN
HCl met actieve stoffen in maalox:
Mg(OH)2 (s) + 2HCl (aq) MgCl2 (aq) + 2H2O (l) (MgCl 2 (aq) Mg2+ + 2 Cl-)
Al2O3 (s) + 6HCl (aq) 2AlCl3 (aq) + 3H2O (l) (2AlCl 3 (aq) 2Al+3 + 6Cl−)
NaOH en HCl:
HCl (aq) + NaOH (aq) -> NaCl (aq) + H2O (l)
RESULTATEN
A. Bepaling neutraliserende werking antacidum
mtabletje maalox 1.2064 g
Molariteit NaOH 0.0976 M
Molariteit HCl 0.100 M
1ste titratie 2e titratie 3e titratie (4e titratie)
mmaalox 0.1988 g 0.1994 g 0.1984 g /
1
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