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Cp=6%;
ms=40[g];
Wzór:
Cp=(ms*100%)/(ms+mw);wyznaczam mw;
Cp(ms+mw)=100%*ms;
Cpms+Cpmw=100%*ms;
Cpmw=100%ms-Cpms;
mw=ms(100%-Cp)/Cp;
mw=40(100-6)/6;
mw=40*94/6
mw=626,7[g] H2O.
Odp.Należy rozpuścić w 626,7[g] H2O.