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04-03-2024
Chemistry

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A un volume Va d'une solution A d'acide chloroacetique ClCH2COOH de normalité Na, on ajoute du NaOH de normalité Nb=Na. On obtient une solution Bde volume totale Vt=15 VA et de pH=2.9.
Déterminez le rapport du nombre de mole na/nb , (na et nb est du nombre de mole d'acide et base ).

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