Răspuns:
ro=m/v
v=5ml---> m= 5xro........1doza
x................23doze
\dar x=masa de sirop din 1 flacon= 149,5g
deci 149,5= 23x5xro---ro= 1,3g/ml (b) deci (a)-fals
c.
nr.doze= V,total/5ml=110/5=22 doze......fals
d.
1doza contine 5x1,3g sirop=6,5g
6,5gsirop..........6,5mg subst,activa
100g........................m=100mgsubst.activa=0,1g corect !
e. 1doza.......6,3mg subst.activa
23doze...........m= 149,5mg.............1 flacon
x.....................10000flacoane
x= 1495000mg= 1,495kg substanta activa corect !
Explicație:
