[inspiration100]

If I have an efflorescent substance and i've calculated the theoretical molarity and the actual molarity, would I expect the theoretical molarity to be higher or lower than the actual molarity?

My GUESS, (which is about as good as nothing), would be that the theoretical molarity should be lower than the actual molarity?

*delete me*

[inspiration100]

why does my thing say *delete me* above it?    If it's because I wasn't descriptive enough in my first post as to why I came to that conclusion, here goes it...

My guess is that it is artificially high because the crystalized waters are lost which makes less crystals to form water.  But this is as good of explanation as I can come up with.  Would a "loss of waters of crystallization" make less of the substance to bond?

[Borek]

What do you mean by "molarity of efflorescent substance"? Perhaps my English fails me, but efflorescent substance is solid - and molarity refers to solution.