la completati spatiile libere.... nu se vede textul cu datele problemei...
B/,
1.
w% = mdx100/ms
=> md = ms1xw1%/100 = 447x5/100 = 22,35 g
=> ms2 = mdx100/w2% = 22,35x100/9 = 248,33 g sol finala
=> m.apa.evaporata = ms1 - ms2 = 447-248,33 = 198,67 g
2.
ms2 = mdx100/w2% = 22,35x100/9 = 248,33 g sol finala
3.
22,35/248,33 = 0,09
4.
nu se vede cerinta complet...
