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Annales 2021-2022 Session 2


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Salut ! 

 

Tu as la réaction : 3 BrO- -> BrO3- + 2 Br-

Pour répondre à cet item il faut regarder les coefficients stœchiométriques.

On remarque que pour 3 moles de BrO- qui réagissent, on obtient 1 mole de BrO3.

Donc pour 0,3 moles de BrO- qui réagissent on aura bien 0,1 mole de BrO3-.

 

Est ce que c'est plus clair ?

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