hi, i got a small problem, last monday i got this experiment to do : potassium oxalate + copper sulfate ----> potassium-copper oxalate, with a formulas of : K2Cu(C2O2)2 ---xH2O but i don t know how many molecule of water there is there (x) thanks for helping me toto ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com __________________ ORGLIST - Organic Chemistry Mailing List WWW Homepage and Archive: http://www.orglist.net/ List coordinator: Joao Aires de Sousa (jas@mail.fct.unl.pt)