Exercițiul 5 va roooog eu muuuuuult!!!!!!!!!!!!!!!!!!!

Vs = 50 ml (cm3), ro = 1,84 g/ml
stim ca ro = ms/Vs
=> ms = roxVs = 50x1,84 = 92 g
c% = 25%
stim ca c% = mdx100/ms
=> md = msxc%/100
= 92x25/100 = 23 g
stim ca ms = md+m.apa
=> m.apa = ms-md
= 92-23 = 69 g apa