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question rapide spectro UV


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  • Ancien Responsable Matière
Posted

salut, pour la spectroscopie quand y a un O impliqué dans une liaison ether dans une molécule le prof compte 16 dcp 2 x 8 mais dcp on multiplie par 2 à cause du dnl ??

merci d'avance !! 

  • Solution
Posted

Slt, pour tous les atomes le prof compte le nombre de masse, donc carbone c'est 12, O c'est 16 (tjr, pas que ether), Cl c'est 35 etc.

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