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Polarité des molécules


aisha2407
Go to solution Solved by yrr,

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Bonsoir,

il y a 9 minutes, aisha2407 a dit :

image.png.5ba04a3d9c12a39c6f59c8dea8d2078f.png

 

Si la géométrie d'une molécule est symétrique alors celle-ci est apolaire.

Ainsi, CO2 est apolaire, C6H12 aussi, et CCl4 également

La seule molécule polaire étant ici le propanone C3H6O

 

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Le 09/12/2023 à 00:13, yrr a dit :

au lycee on faisait comme ca:

1. tu calcules la difference d'electronegativite entre les atomes de la molecules

2. tu verifie si c'est compris entre 0.4 et 1.6 (je pense que c'est çà, faut confirmer)

3. tu verifies les barycentres

oui c'est ça, merci bcp

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