Terminale pH et couple acide/base

Quiz
•
Chemistry
•
12th Grade
•
Hard
Bruno Souil
Used 58+ times
FREE Resource
12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Un acide est une espèce chimique capable de :
capter un proton H+
céder un proton H+
capter un électron e-
céder un électrons e-
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
La relation pour déterminer le pH s'écrit :
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Si la concentration en ions oxonium H3O+ dans une solution augmente alors
le pH de la solution diminue
le pH de la solution augmente
la solution est plus acide
la solution est moins acide
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
la molécule d'eau H2O est la base du couple
H+/H2O
H2O/HO-
H2O/H3O+
H3O+/H2O
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
La méthylamine CH3NH2 est une base. Ecrire la formule de l'acide conjugué. (majuscules)
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Les couple acide-base intervenant dans l'équation NH4+ + HO- → NH3 + H2O sont :
NH4+/HO- et NH3/H2O
NH4+/NH3 et HO-/H2O
NH4+/NH3 et H2O/HO-
NH4+/HO- et H2O/NH3
7.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
L'ion amonium NH4+ est un acide. Lors de sa réaction avec la base H2O, il y a formation :
d'ions hydroxyde HO-
d'ions oxonium H3O+
d'ammoniac NH3
du dioxyde d'azote NO2
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