Question

Md=3kg
Concentratia= 3 supra ms • 100=60% unde ms=md+m apa
Cu cat este egal m apa

Answer 1

Răspuns:

md=3 kg=3000 g;

c=60%;

ms=(md*100)/c;

ms=((3000*100)/60) g;

ms=5000 g;

m(H2O)=(ms-md)=2000 g=2 kg.