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Go to solution Solved by Tanganil,

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Posted

Salut @frogfroggy!

item C : 
image.thumb.png.0046408ebaae0cf5b56bad99702c837a.png

ce qui revient à pH = 4 + log1 = 4

 

item E : pH > pKa = 7,4 > 4 DONC la forme basique (A–) de l'acide butyrique est prédominante

Bonnes révisions !

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