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Annale Purpan 2015


Go to solution Solved by Sahra,

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Posted

Bonjour,

 

Je ne comprends pas la question A de l'exercice 5.

 

Pour moi on ne prend en compte que l'acide faible (je suppose que l'acide et la base forte se compense) donc : pH = 1/2 (Pka - log m) mais du coup je trouve 3,5 et pas 5.

 

Les bonnes réponses sont ABC

 

Merci

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Posted

Salut Baptiste! 

 

Je suppose que ta partie favorite du forum est ici, mais ça m'a tout l'air d'un qcm de biophysique :rolleyes:

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