analiticka hemija

Submitted by Tanja Djikic on Mon, 05/25/2015 - 21:45
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Odrediti molaritet 12% rastvora natrijum-sulfata,čija je gustina 1,3gcm3?

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milicaradenkovic - Tue, 05/26/2015 - 14:11

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