I'm just gonna jump right in here and throw this down:
What is the molarity of a Ca(OH)2 solution whose pH=11?
I have also found the Ksp of the solution to be 6.5x10-6, but how this is helpful to me I'm unsure.
There is also a similar problem with the pH=11.88, where I can only assume the process is the same.
I was able to determine the molarity of a HCl solution given pH, but that is only because the [H+] concentration is the same as the molarity with strong acids, so I just did 10 raised to the power of the pH. Is that process helpful in this regard, or am I hopelessly off-track?
Any assistance is appreciated.