Réponse:
Q=It=Nè=nNa.è where N is a number of électron of équation and e is a charge.Na Avogadro constant ans n is the number of mol
équation :Al +è==Al+
q=m/M.Na*è where M IS the molar mass of aluminium and m is his mass in g.
another way to proced: q=n.Na.e=n.F where F is Faraday(F=96500c)
