Aqueous solutions of acetic acid and ammonia have very low conductivity. When these solutions are mixed, the resulting solution of ammonium acetate displays high conductivity. The 12 thumbnail images summarize the content of the video. Click an image to see the image gallery.
A conductivity apparatus demonstrates that water is a very poor conductor of electricity. An aqueous solution 0.1M acetic acid is a very weak electrolyte as shown by its poor conductance. A 0.1M aqueous solution ammonia is also a very weak electrolyte as shown by its low conductivity. When aqueous solutions of acetic acid and ammonia are mixed, the resulting neutralization reaction produces the highly ionized salt of ammonium acetate which is an excellent conductor of electricity.
The neutralization of a weak acid, acetic acid, by a weak base, aqueous ammonia, is demonstrated. The nonconductance of water is compared to the poor conductance of 0.1M acetic acid and 0.1M aqueous ammonia. However, when the acetic acid and ammonia are mixed, the resulting solution of ammonium acetate is a very good conductor.
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