Now this sounds easy, but It becomes much harder when you understand the circumstances...

I have four liquids that can be any of the following:

1.00M HCl
.500M HCl
.100M HCl

1. M NaOH
.5 M NaOH
.1 M NaOH

and the acids have phenolphthalein in them....the only problem is that I need to determine the molarity of these four unknowns using just the four unknowns....

This means I cannot use a pH meter, nor a known Acid/Base to determine neutralization...This is confusing...and if anyone can help me in determining the correct procedure into find the right placement, I would be greatly happy.