Here's a random, probably simple question I have that maybe chemistry-GAF can answer. How the hell do you make a 5 N calcium hydroxide solution? I'm running a fermentation soon attempting to verify some results from a recently published paper in which they maintained the pH of their growth medium using 5 N calcium hydroxide. Well, the thing is, calcium hydroxide is hardly soluble in water... something like 1.5 g/L. I know that calcium hydroxide and water makes something referred to as "lime water" but that's about as far as my knowledge of calcium hydroxide goes. Any thoughts? Do I just dump in the appropriate amount of calcium hydroxide with water, mix it well, then separate out the water from the remaining solid? It just seems... not right.
Any help is appreciated. Hopefully I'm not making myself look too stupid by asking this.
First thing when it comes to solubility I always do is check the pH. It might seem obvious since you're making a pH buffer, but what pH do they make their solution at? And at what temperature do they mix the ingredients?
Tons of stuff e.g. Heats up when mixing (looking at you methanol) which makes things not mix well/mix better.