Transformations acide-base Flashcards

1
Q

acide

A

entité chimique capable de libérer un ion hydrogène H+ (un proton)

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2
Q

base

A

entité chimique capable de capter un ion hydrogène H+

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3
Q

espèce amphotère

A

espèce chimique qui est la base d’un couple et l’acide d’un autre

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4
Q

espèce chimique qui est la base d’un couple et l’acide d’un autre

A

espèce amphotère

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5
Q

couples acide-base de l’eau

A

(eau/ion hydroxyde) H2O /OH-
(ion oxonium/eau) H3O+ /H2O

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6
Q

couples acide-base de l’acide carbonique

A

(acide carbonique/ion hydrogénocarbonate) H2CO3 /HCO3-
(ion hydrogénocarbonate/ion carbonate)
HCO3- /CO3²-

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7
Q

couple acide-base d’acides carboxyliques

A

(acides carboxyliques/ions carboxylate)
R-COOH /R-COO-

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8
Q

couple acide-base d’amines

A

(ion ammonium/amines) R-NH3+ /R-NH2

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9
Q

pH =

A

-log ([H3O+]/c°)

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10
Q

[H3O+] =

A

c°.10^-pH

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11
Q

[H3O+]

A

concentration en ion oxonium (mol.L^-1)

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12
Q

(Schéma de Lewis) R

A

groupe CH3

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