[pewpew]

Alright, so I did a lab titrating saturated Ca(OH)2 with HCl (0.100M), and have these results:
Amount HCl added (mol): 1.081 x 10^-3
Amount OH in saturated Ca(OH)2 (mol): 1.614x10^-4 (given volume of saturated Ca(OH)2 was 25ml)

So, what i now need to find is [OH-] at equilibrium and [Ca2+] at equilibrium, which I have no clue.

Oh, please don't say use Ksp value of calcium hydroxide, cause that's what I'm supposed to find out once i get [oh-] and [Ca2+]

If needed, temperature was 20.9 degrees celcius, which I have no clue what part it plays in.
Also, can ayone tell me what the mol per liter is for a "saturated" calcium hydroxide?

[Borek]

Can you write equation of Ca(OH)₂ dissolution?

According to this equation, what should be concentration of Ca²⁺ if concentration of OH^- is 1.614x10^-4?

[pewpew]

So for every 2 (OH) mol there is 1 mol of Ca, so 8.07 x 10^-5.

Thanks so much.