👤
Miki273
a fost răspuns

masa apei =? 200g solutie concentratia =40la suta concentratia =20 la suta

Răspuns :

ms1=200g
c1=40 %
cs=20%
md=ms1*C1/100=200*40/100=80 g
ms2=md*100/c2=80*100/20=400g
mH2O=ms2-ms1=400-200=200 g