Qu'est-ce qu'un acide faible?
Quiz sur les acides faibles et les équilibres chimiques

Passage
•
Chemistry
•
12th Grade
•
Hard
Tsilla Boisselet
Used 1+ times
FREE Resource
14 questions
Show all answers
1.
OPEN ENDED QUESTION
3 mins • 1 pt
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2.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Parmi les exemples courants d'acides faibles, on trouve l'acide acétique, l'acide formique et l'acide ___.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Comment titre-t-on un acide faible?
Addition d'une base forte
Addition d'un acide fort
Addition d'une base faible
Addition d'une solution neutre
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle est l'équation bilan qui modélise la transformation entre l'acide faible AH et l'eau?
AH + H2O --> A- + H3O+
AH + H2O --> A- + OH-
AH + H2O --> A- + H2O2
AH + H2O --> A- + H+
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle est la constante d'équilibre associée à la transformation entre l'acide faible AH et l'eau?
Constante de solubilité
Constante d'acidité
Constante de réaction
Constante de dissociation
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle est la formule pour calculer la constante d'acidité d'un couple acide-base?
pKa = log(1/Ka)
pKa = log(Ka)
pKa= -log(Ka)
pKa = -log(1/Ka)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle est la valeur de la concentration standard (c0) pour la constante d'acidité?
10 mol/L
0.01 mol/L
0.1 mol/L
1 mol/L
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