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Chapitre 5: les acides et les bases

Chapitre 5: les acides et les bases. Où les retrouve-t-on?. Applications des calculs de pH. Contamination par les rejets miniers Qualité de l’eau potable – traitement des eaux. M(OH) x (s). M x+ (aq) + x OH - (aq). M: métal de transition (Fe, Ni, Cu…). ClO - (aq) + H 2 O (l).

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Chapitre 5: les acides et les bases

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  1. Chapitre 5:les acides et les bases Où les retrouve-t-on?

  2. Applications des calculs de pH • Contamination par les rejets miniers • Qualité de l’eau potable – traitement des eaux M(OH)x (s) Mx+(aq) + x OH-(aq) M: métal de transition (Fe, Ni, Cu…) ClO- (aq)+ H2O (l) HClO (aq)+ OH- (aq) Rio Tinto, Espagne http://planetimago.hautetfort.com/archive/2011/07/20/des-airs-de-mars-en-andalousie.html http://www.guideperrier.com/article1265/Piscines-exterieures-hors-terre-ou-creusees-

  3. Applications au calcul de pH Pluies acides, p.265 Pouvoir tampon du fleuve SO2(g)+ H2O (l) HSO3-(aq)+ H3O+(aq) CO2(g)+ H2O (l) HCO3-(aq)+ H3O+(aq) Chaire industrielle en aménagement forestier durable http://chaireafd.uqat.ca/communique/nouvellesF.asp?Date=2010-04-08%2016:59:55 http://www.monquebec.net/photos.php?show_heading=detail&dir=Chaudiere-Appalaches&photo=1

  4. Applications en milieu biologique Le sang et l’homéostasie : tampon de bicarbonate p.299 La digestion: p.268 7,35 ≤ pH ≤ 7,45 pH = 1,5 à 3,5 (HCl) Composition des antiacides? http://actusmed.blogspot.ca/2011/08/decouverte-de-vaisseaux-sanguins-qui.html http://www.cdlb.org/santetorsionestomac.htm

  5. Applications en alimentaire CH3CHOHCOOH H3PO4 http://kampai.radio-canada.ca/recettes/recette/225 http://www.lecoinbio.com/20090306728/blogs/cosmetiques-bio/du-jus-de-citron-pour-faire-briller-les-cheveux.html http://www.infetech.com/article.php3?id_article=207

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