C31 Posted April 4, 2020 Share Posted April 4, 2020 (edited) Bonjour est ce que qqn pourrait m’indiquer comment on trouve un pH= 12 pour litem B également comment on trouve la vitesse moyenne= 10 m/min pour le qcm 4 et aussi est ce qu’un liquide newtonien est forcément réel? merciii Edited April 4, 2020 by C31 Quote Link to comment Share on other sites More sharing options...
Solution Kermit Posted April 4, 2020 Solution Share Posted April 4, 2020 salut le pH d'une base forte s'obtient par pH = 14 + log C ici C = 0,01 donc 10-2 pH = 14 + (log 10-2) = 14 -2 = 12 Quote Link to comment Share on other sites More sharing options...
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