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Lala19
@Lala19
April 2019
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AIDEZ MOI SVP :)
Indiquer, si les solutions suivantes sont acides,neutres ou basiques à 25°C
1) La solution S1 a un pH égal à 3,5
2) 250mL de la solution S2 contiennent 2,5.10^-8mol d'ions oxonium
3) 25mL de la solution S3 contiennent 1,2.10^-8 mol d'ions hydroxyde.
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kevinho
1-solution acide
2-neutre
3-basique
2 votes
Thanks 1
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2-neutre
3-basique