Wednesday
August 27, 2014

Homework Help: chemistry

Posted by jessica on Tuesday, July 21, 2009 at 3:10pm.

Kc = [Na+][Cl-]/[NaCl(s)]
The above equation contains the concentration of NaCl in solid NaCl. This concentration is related to the density of solid NaCl
and its molar mass. Since the density of NaCl or of any pure solid or pure liquid does not vary with the extent of a reaction, the
concentration of any pure solid or liquid can be regarded as a constant and, thus, can be further absorbed into the equilibrium constant

density =mass/volume so density of solid or liquid does not channge, is this because the volume of the solid or liquid does not depends on the container it is in, it is the amount of substances its self?

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