ms1=600g ρH2O=1g/cm3
c1=35% md=c1*ms1/100=35*600/100=210 g
VH2O=100 ml mH2O=ms1-md=600 g-210=390 g
a )mH2O final=? 1ml =1cm3
b))cfinal=? mH2O final=390 g+100 g=490 g
c)md=? msf=ms1+mH20=600 g+100 g=700 g
c final=md/msf*100=210 g/700 g*100=30 %
corecte sunt a,b,c