analiticka hemija

Tanja Djikic's picture

Odrediti molaritet 12% rastvora natrijum-sulfata,čija je gustina 1,3gcm3?

milicaradenkovic's picture

c=n/V=ms/Mr*V=mr*w/Mr*V=ro*w/Mr

c=1.3*10(3)*0.12/142=1.0986 mol/l