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Topic: color of percipitate in a reaction?  (Read 5269 times)

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Offline shadowflame1639

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color of percipitate in a reaction?
« on: December 31, 2008, 02:10:46 PM »
sorry if this in the wrong section wasn't quite sure where to put it.

So If I react AgNO3 + NaCO3 = 2NaNO3 + Ag2CO3 ( believe I've got it blanaced right^^;) wil there be a percipitate, what color will the percipitate be, how do I know this with out preforming a reaction? I looked around a little and didn't find much so yeah^^; sorry if you'd already answered this.

Offline Mr Peanut

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Re: color of percipitate in a reaction?
« Reply #1 on: December 31, 2008, 03:21:04 PM »
Silver carbonate has a solubility product ~ 8e-12. You will get a ppt if:

([Ag+]^2)[CO3--] exceeds this value. (Likely)

It is a yellow to grey-yellow ppt.

ps equation not balanced

Offline Arkcon

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Re: color of percipitate in a reaction?
« Reply #2 on: December 31, 2008, 03:31:12 PM »
Pictures are a little hard to find, you may have to do the google image search, and go deep in.  Or you can try college level text books.  Back in my day (oh, these aging bones) you'd see at least a few pictures in a college text.  But no one really does these often enough for it to be worthwhile hosting the pictures online.  And descriptions of colors -- might not really help you when it's time.  Like I mention in this thread here:

http://www.chemicalforums.com/index.php?topic=29298.msg111202#msg111202
Hey, I'm not judging.  I just like to shoot straight.  I'm a man of science.

Offline shadowflame1639

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Re: color of percipitate in a reaction?
« Reply #3 on: December 31, 2008, 05:34:35 PM »
thank you both^^

lol wow I can't believe I forgot the 2...let me go finish balancing that XD there we go now it's balanced 2AgNO3 + Na2CO3 = 2NaNO3 + Ag2CO3 there we go...I hate typos^^;

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