Precipitation calculations

  • Thread starter proskier
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Help please!

Here's the question I'm having problems with:

The solubility product of calcium hydroxide, Ca(OH)2, is 7.9 x 10^-6 at 25 degrees celcius. Will a precipitate form when 100mL of 0.10 mol/L of CaCl2 solution and 50.0 mL of 0.070 mol/L of NaOH solution are combined?


Do I need to find the solubility product for CaCl2 and NaOH before I can determine if a precipitate will form when they're added to Ca(OH)2. Any help will be greatful. I don't even know if I'm on the right track or not.

Thanks
 

Answers and Replies

  • #2
chemisttree
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Help please!

Here's the question I'm having problems with:

The solubility product of calcium hydroxide, Ca(OH)2, is 7.9 x 10^-6 at 25 degrees celcius. Will a precipitate form when 100mL of 0.10 mol/L of CaCl2 solution and 50.0 mL of 0.070 mol/L of NaOH solution are combined?


Do I need to find the solubility product for CaCl2 and NaOH before I can determine if a precipitate will form when they're added to Ca(OH)2. Any help will be greatful. I don't even know if I'm on the right track or not.

Thanks

Assume that CaCl2 and NaOH are both soluble at the specified concentrations.
 

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