Solutia rezultata, sol3, contine o masa de acid md3=md1+md2+md3 dizolvat in masa de solutie ms3= ms1+ms2
Calc md1 din c1: 20/100=md1/500---> md1=100g
Calc masa volumului de 300ml, m,s2= 300mlx1,3067g/ml=392g (cmcub=1ml)
Calc md2 din c2: 40/100= md2/ 392----->md2=156,8
md3= 1oo+1156,8+43,2=300gacid
ms3=500+392= 892
c3= md3x100/ms3=> 300x100/892=33,63 %
VERIFICA CALCULELE !!!