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Topic: Molar solubility and KSP  (Read 4732 times)

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Offline josepk2

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Molar solubility and KSP
« on: May 16, 2011, 10:44:32 PM »
what effect on solubility and KSP does HCL have when added to saturated KHP?

Offline josepk2

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Re: Molar solubility and KSP
« Reply #1 on: May 16, 2011, 11:05:31 PM »
I said that Nothing will happen to the solubilty and the Ksp when HCl is added to a saturated solution of KHP because it only adds Hydronim ions and shifts the reaction to the left which does not do anything to the solubility or Ksp.
Is that right?

Offline josepk2

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Re: Molar solubility and KSP
« Reply #2 on: May 17, 2011, 12:04:48 AM »
I think i got it does this seem right?



The solubility will increase. This is becuase HCl is an acid. So adding an acid to KHP solution will remove a portion of the base (HP-). Le Chatelier's principle states that the dissolving reaction of KHP will shift to the right, and cause more KHP to be dissolved, therefore increasing the solubility. However, the Ksp remains the same. This is because Ksp is a property of a substance, and it only changes with temperature.

Offline Borek

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Re: Molar solubility and KSP
« Reply #3 on: May 17, 2011, 06:50:42 AM »
Much better now.
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