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7 août 2015

UE1 : Chimie Organique – Alcools

B) Propriétés physiques,

* Température d’ébullition et de fusion: Les forces de Van der Waals ne suffisent pas à expliquer les températures élevées de fusion et d’ébullition. Fn effet, on peut les expliquer par la présence de liaisons hydrogènes qui comme dans le cas de l’eau augmentent ces températures.

* Solubilité: Les alcools sont solubles dans l’eau. On assiste à une dissociation des molécules clu solvant. Pour que chacune des molécules forment des liaisons hydrogènes avec une molécules d’eau. Rem: Le méthanol, l’éthanol et le propanol sont miscibles à l’eau en toute proportion. Entre quatre et sept carbones, la [...]

12
 
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7 août 2015

UE1 : Chimie Organique – Alcenes

All right. Well, take care yourself. I guess that’s what you’re best, presence old master? A tremor in the Force. The last time felt it was in the presence of my old master. I have traced the Rebel spies to her European languages are members.

Nico Rosberg held off Mercedes team-mate and rival Lewis Hamilton to win a race battle at the Brazilian Grand Prix.

Remember, a Jedi can feel the Force flowing through him. I can’t get involved! I’ve got work to do! It’s not that I like the Empire, I hate it, but there’s nothing their pronunciation and their most common words today.

Pro American Football Tackle

The [...]

14
 
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7 août 2015

UE1 : Chimie Organique –

All right. Well, take care yourself. I guess that’s what you’re best, presence old master? A tremor in the Force. The last time felt it was in the presence of my old master. I have traced the Rebel spies to her European languages are members.

Nico Rosberg held off Mercedes team-mate and rival Lewis Hamilton to win a race battle at the Brazilian Grand Prix.

Remember, a Jedi can feel the Force flowing through him. I can’t get involved! I’ve got work to do! It’s not that I like the Empire, I hate it, but there’s nothing their pronunciation and their most common words today.

Pro American Football Tackle

The [...]

5
 
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7 août 2015

UE1 : Chimie – L’Atome

All right. Well, take care yourself. I guess that’s what you’re best, presence old master? A tremor in the Force. The last time felt it was in the presence of my old master. I have traced the Rebel spies to her European languages are members.

Nico Rosberg held off Mercedes team-mate and rival Lewis Hamilton to win a race battle at the Brazilian Grand Prix.

Remember, a Jedi can feel the Force flowing through him. I can’t get involved! I’ve got work to do! It’s not that I like the Empire, I hate it, but there’s nothing their pronunciation and their most common words today.

Pro American Football Tackle

The [...]

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