ex chimie Flashcards by oui oui

Q

Quelle est l’expression de la constante d’acidité Ka

A

ka=[H+].[A-]/[HA]

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Q

Quelle est l’expression de ph

A

ph=pkA+log

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Q

c’est quoi pka

A

pk=-log.ka

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Q

Comment exprimer le taux d’avancement final

A

T=xéq/xm

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Q

xeq

A

CA.V

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Q

xm

A

CA.V-xm

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Q

tauux=base/acide+base

A

1/1+acide/base

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Q

si h2O alors le reactif est

A

en exces

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Q

CA

A

xeq/taux

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Q

l’unite de ca

A

mol.l-1

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Q

quand on ajoute HO-

A

la reaction devient basique

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Q

quand on ajoute h2O

A

la reaction devient neutre

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Q

A

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