acidebase.py

Created by mbtp07

Created on May 08, 2022

470 Bytes

bac


ph=-log[h30+]
Acide cède h+
eau amphotère
autoprolyse de l'eau : 2h20= OH- + h30+
Ke=[h30+]+[OH-]
a 25° Ke=10^-14
pke=-log(Ke)
reactions base et acide faible double sens car eau pas consomée entièrement
Ka=[A-]*[H30+]/[AH]
pKa=-log(Ka)

Acide Fort : 
  ph=-log[C0]
  
Base Forte :
  ph=Pke+log[C0]
  
Acide ou Base Faible d'un couple
  ph=pKa+log([A-]/[AH])
  
Solution Tampon -> ne fait pas varier le pH deux solutions qui s'annulent:
  le pH = pKa

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