Răspuns:
Explicație:
ms 1 =50 g md1= c1*ms1/100= 25* 50/100= 12,5g
c1= 25 %
ms2= 80 g md2= c2*ms2/100= 50 * 80/100=40 g
c2= 50 %
mH2O= 70g md final= md1+md2= 12,5+ 40= 52,5 g
C final =? ms final = ms1+ms2+mH2O= 50 g+ 80 g +70 g
= 200g
c final= md final/ms final*100= 52,5 g / 200g *100= 26,25 %
