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Carbono orgánico

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pH<br />

CARBONO INORGÁNICO y pH<br />

DEFINICIÓN (Sorensen)<br />

Logaritmo decimal inverso de la concentración de iones<br />

hidrógeno<br />

pH = - log 10 [H + ]<br />

(indicador del carácter ácido o alcalino de una solución)<br />

Rango: 1 - 14<br />

H 2 0 H + + OH -<br />

[H + ][OH - ] = 1x10 -14 M<br />

en equilibrio:<br />

[H + ] = [OH - ] = 1x10 -7 M<br />

Alcalino [H + ] = 1x10 -14 M<br />

Ácido [H + ] = 1x10 -1 M

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