AT 22 Dosage vinaigre
Quiz
•
Biology
•
11th Grade
•
Medium
Wizarcanum Wizarcanum
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle était la molécule que l'on a cherché à doser dans le vinaigre ?
l'ion éthanoate
CH3COOH
L'acide éthanoïque
CH3COO-
L'acide éthanoïque
CH3COOH
l'ion éthanoate
CH3COO-
2.
OPEN ENDED QUESTION
1 min • 1 pt
Pourquoi avons nous réaliser une dilution du vinaigre ?
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3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Calcul dilution: Si je voulais diluer le vinaigre au 1/10 dans un volume total de 20 mL. Quel volume de vinaigre faut-il prélever ?
1 mL
2mL
5mL
10 mL
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Quel est le nom chimique de la soude ?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Lors du dosage réalisé, la solution titrante était .......
L'acide éthanoïque
l'ion éthanoate
le sodium
l'ion hydroxyde
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quel était l'équation bilan de la réaction étudiée lors de l'AT
CH3COO- + H20 =>CH3COOH + OH-
CH3COOH +OH- => CH3COO- +H20
CH3COOH + H20 => CH3COO- +OH-
7.
OPEN ENDED QUESTION
1 min • 1 pt
Question : Quel est l'intérêt d'ajouter 50 ml d'eau dans l'erlenmeyer
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