Friday, February 12, 2010

Chemistry Lab: Predicting the Formula of a Precipitate

So, my friend, what IS a precipitate?
The answer? An insoluble solid coming out of a solution.



In this lab we performed, double replacement reactions occurred. Reaction 1: Silver nitrate and sodium chloride form silver chloride and sodium nitrate. In the other reaction, silver nitrate and sodium acetate formed silver acetate and sodium nitrate. (Remember, metals replace metals!) A precipitate formed in reaction 1, but not in reaction 2. In reaction 1, AgCl (silver chloride) was the precipitate.

Silver Chloride:

Has a very low solubility in water!

PAUSE: Someone keeps playing the ukulele. -_-; It's kind of annoying, but they play well. lol.

Anyway, in single replacement reactions, metals can be arranged in order of how reactive they are. Metals high in the reactivity series usually displace metals lower down.

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