acido
acido
acido
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[H 3 O + ] = (C 0 K A ) 1/2<br />
K A 10 -2 10 -4 10 -6 10 -8 10 -10<br />
C 0<br />
1 10 -1 10 -2 10 -3 10 -4 10 -5<br />
10 -2 10 -2 10 -3 10 -4 10 -5 10 -6<br />
10 -4 10 -3 10 -4 10 -5 10 -6 10 -7<br />
10 -6 10 -4 10 -5 10 -6 10 -7 10 -8<br />
Non vale la 2 a approssimazione:<br />
[HA] 0 – [H 3 O + ] HA ≠ [HA] 0<br />
Non vale la 1 a approssimazione:<br />
[H 3 O + ] HA ~ [H 3 O + ] Acqua