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QCM 31 annale 2020


Go to solution Solved by IsaéLecat,

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Posted

Salut, 

Lorsque tu as une hydrolyse alcaline d'un ester d'acide gras (ici cholestérol), il y a la réaction de saponification, qui va transformer l'ester en sel alcalin (ou savon si tu préfères) qui est polaire, contrairement à l'ester de cholestérol, donc on verra. bien apparaitre des composés dans la phase supérieure, à savoir les savons formés suite à l'hydrolyse.

j'espère que c'est plus clair.

 

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