I have a Ca(OH)2 solution titrated with HCl. I need to find molar solubility. Anybody got any ideas?

Question

I just need the general idea for this problem. No need for numbers.. I just want the general formula. :) thanks

Answer 1

1. Make sure that HCl is standardized.
2. Write the balance equation:

Ca(OH)2 + 2HCl ---> CaCl2 + 2H2O

- this means that 1 mole of Ca(OH)2 reacts for every 2 moles of HCl

3. Get the number of moles of HCl reacted by multiplying the volume used to react Ca(OH)2 by the actual concentration of HCl (value from standardization). Divide the result by 2 - and this is now your moles Ca(OH)2.

4. Get the molar solubility of Ca(OH)2 by dividing its number of moles by its volume. Unit is in gram per liter.