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question biphysique


Go to solution Solved by BrianO'Conner,

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Posted

@Selm salut !

normalement tu as dû trouver vrai à l'item A, donc l'osmolalité de la solution de glucose est de 0.2 osm/kg.

 

le glucose ne se dissocie pas dans l'eau, donc i = 1

 

Osmolalité = i. molalité => molalité = osmolalité/i

 

donc molalité = 0.2/1 = 0.2 mol/kg

 

voilà j'espère que ça t'aidera !

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