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Topic: how to find ion conc. in an solu?  (Read 1233 times)

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Offline CaptCoonoor

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how to find ion conc. in an solu?
« on: April 12, 2015, 01:27:51 AM »
Two saturated aqueous solutions are prepared at 25 ºC.

Solution 1 is made by dissolving cadmium fluoride (CdF2, Ksp = 6.44 x 10-3) in 100.0 mL of water until excess solid is present. Solution 2 is prepared by dissolving lithium fluoride (LiF, Ksp = 1.84 x 10-3) in 200.0 mL of water until excess solid is present. Which solution has a higher fluoride ion concentration?


Again, two saturated aqueous solutions are prepared at 25 ºC.

One is made by dissolving lithium carbonate (Ksp = 8.15 x 10-4) in 100.0 mL of water until excess solid is present, while the other is prepared by dissolving lithium phosphate (Ksp = 2.37 x 10-4) in 200.0 mL of water until excess solid is present. Which solution has a higher lithium cation concentration?

Offline thetada

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Re: how to find ion conc. in an solu?
« Reply #1 on: April 12, 2015, 01:59:13 AM »
Hi, it's forum policy that you need to have a go at answering the question for yourself first. Can you write the expression for Ksp?

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