March 28, 2024, 09:13:49 AM
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Topic: solubility of potassium bitartrate  (Read 8564 times)

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Offline khem_newbie

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solubility of potassium bitartrate
« on: March 28, 2007, 09:19:03 PM »
Hi,

I was doing an experiment on solubility of potassium bitartrate. When potassium nitrate was used as a solvent, due to common ion effect, solubility of potassium bitartrate decreases.


when a "Graph of the solubility of Potassium Bitartrate against the concentration of Potassium Nitrate" was plotted, i got a straight line with a negative gradient. I understand in theory, a curve should be obtained, any idea why?

Also, if glucose is used as the solvent, i think solubility of potassium bitartrate remains unchanged with varying concentrations of glucose. Am i right? If so, why is it so?

Please advice,

Thanks in advance.

Offline AWK

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Re: solubility of potassium bitartrate
« Reply #1 on: March 29, 2007, 01:43:11 AM »
What about the common ion effect?
AWK

Offline khem_newbie

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Re: solubility of potassium bitartrate
« Reply #2 on: March 29, 2007, 05:32:59 AM »
well, since there is a common ion, potasssium, according to Le Chatelliers Principle, e equilibrium will shift to the left and disfavor the formation of potassium and bitartrate ions. Hence solubility decreases.

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