Răspuns:
Vapa=V balon cotat=250ml
m,apa= m,balon plin-masa ,balon gol= 366g-118,5g=247,5g
ro,apa= m,apa/V apa= 247,5/250g/ml=0.99g/ml
ro= 1,43g/ml
Vsol= V balon cotat=250ml
ro=m/v---> m,sol=1,43x250 g=357,5 g
m,balon plin= m,sol+m,balon gol= 357,5+118,5=>476g
Explicație:
