léon-le-bourdon Posted June 7, 2020 Share Posted June 7, 2020 1) Puis-je avoir la résolution de cet item ? merci Quote Link to comment Share on other sites More sharing options...
Chat_du_Cheshire Posted June 7, 2020 Share Posted June 7, 2020 Hello, n CH => concentration de 10^-2n M Donc ici 30 CH soit 10^-2*30 = 10^-60 M Quote Link to comment Share on other sites More sharing options...
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