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Topic: Precipitate? What's the forula?  (Read 3422 times)

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Offline Toxage

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Precipitate? What's the forula?
« on: February 03, 2008, 11:21:11 PM »
How many grams of NaN03 will precipitate if a saturated solution of NaNO3 in 200g H20 at 50 Celsius is cooled to 20 Celsius?

I think I would use a formula to solve it but our notes doesn't have anything on this. I looked in the textbook, but didn't really understand it. What formula do I use to solve this?
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Offline Rabn

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Re: Precipitate? What's the forula?
« Reply #1 on: February 04, 2008, 03:35:27 AM »
what do you know about the solubility NaNO3?  What have you learned about how temperature effects solubility?
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Offline Borek

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Re: Precipitate? What's the forula?
« Reply #2 on: February 04, 2008, 03:44:56 AM »
Rabn points you to qualitative explanation, if you need quantitative - you have to look up solubility tables in something like CRC handbook.
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