Acide Bases Flashcards

1
Q

Acide Base

A

Acide cède des protons

Base capte les protons

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2
Q

échelle de pKa

A

base à gauche acide à droite

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3
Q

acide fort

A

pH = -log(c)

Réaction prépondérante

H2O + H3O+ = H2O + H3O+

et [H3O+] = c

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4
Q

acide faible

A

pH = 1/2 x (pKa - log(c) )

équilibre de controle

AH + H2O = A- + H3O+

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5
Q

base forte

A

pH = pKe + log(c)

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6
Q

base faible

A

pH = 1/2 (pKe + pKa + log(c))

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7
Q

mélange acide base

A

pH = pKa + log (A-/AH)

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8
Q

solution ampholyte

A

pH = 1/2 (pKa1+ pKa2)

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