tanya8860 tanya8860

07-10-2022
Physics

contestada

9
STE Dans un examen de laboratoire, il est demandé aux élèves de préparer une solution de 300 ml
de carbonate de potassium (K₂CO3) ayant une concentration de 0,25 mol/L. Quelle masse de K₂CO₂
les élèves doivent-ils peser?

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