[Chirality89]

I'm a bit confused on exactly what I should be doing here. This is for an undergraduate 300 level inorganic chemistry lab.
1) Calculate the correct mass of H₂salen needed (MW=268.3 g/mol) to form a 1:1 complex with CuCl₂ using 2 mL of a 0.03 M CuCl₂ solution.

I think if I'm pointed in the right direction not sure what route I should to figure this out.

[fledarmus]

So what do you have so far?