Bonjour je donne 20 pt a celui qui me details les réponses a cette exercie svp ex2 concentration d'ions h3o+ et ph 
1 calculer la concentration d'ion h3o+ dans les solution suivantes: 
solution 1 ph=3.7 
solution 2 ph=7.0 
solution 3 ph=5.8 
solution 4 ph=9.2
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