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2015 - QCM 2 et 5


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Salut @Ananas, la forme ? 😄

 

2A - C'est vrai ; Tu inspires un air enrichi en O2/pauvre en CO2, qui va donc donner son O2 à l'organisme et recevoir le CO2 de l'organisme. L'air expiré, l'air inspiré après hématose, devient donc riche en CO2 et pauvre en O2.

 

5D - n = C*V = 0,1 * 1*10-3 = 1*10-4 moles d'acide fort, soit 0,0001 moles, et pas 0,001 😉

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