[Knighteres]

How can i find the volume proportions of a final solution of NaOH of 10L and 0.55 [M] made by mixing a determined volume of two solutions (sol1 and sol2, both of NaOH(ac)) if i only know the molarity of sol1 (0.5 M), the density of sol1 (20 g/L) and the molarity of sol2 (0.65 M)??

Please help, im not asking you to do it (unless you got the time) but maybe just guide me here?

[chenbeier]

Do you know the  cross rule (Mischungskreuz)? But its also possible to develop mathematic equations.

http://www.chembuddy.com/?left=concentration&right=dilution-mixing