31 janvier 2021concentration, g/L, ppm, %Exercices de concentration g/L, %m/v, ppm.Exercices de concentration g/L, %m/v, ppm.Création de:Didier Marion VanasseLien:https://teacher.desmos.com/activitybuilder/custom/5fff3673e2ea430d3bde13c7?lang=fr