Răspuns:
seaplica relatia ( apare c in loc de w)
c=mdizx100/msol, unde msol= mdiz+m,apa
1.mapa= ms-md= 500g-100g=400g
c= 100x100/500%= 20%
2. ms= md+m,apa= 30g+270g= 300g
c= 30x100/300%= 10%
3. ms= mdx100/c= 300x100/20g=1500g
mapa= ms-md= 1500g-300g=1200g
ro,apa= 1g/ml
v,apa=m/ro= 1200/1=1200ml=1,2 l
Explicație:
