Răspunsuri

2014-04-03T16:57:47+03:00
Incerc eu ...:)..poate imi iese
ms=md+mH2O c=md*100/ms->md=c*ms/100=30*200/100=60 g deci mH2O=ms-md=140 g
mersii frumoss te pupp :*
Pup :* sper ca e bine ;)
c1=md1/ms1*100=>md1=200*30/100=>md = 60 g; md1=md2; c2=md1/ms2*100=>ms2=60*10/100=600 g solutie ms2=md1+m apa=>m apa=600-60=540 g apa adaugata
Mad..are dreptate..n-am fost atenta la ultima parte a problemei.