Respostas

2014-07-11T09:36:58-03:00
Cf =2,9
Vf =150+350=500
C1 =??
V1 =150
Cf.Vf = C1.V1 + C2.V2 
2,9.500 = C1.150 + 2.350 
1450 = 150.C1 + 700 
1450 - 700 = 150.C1 
750 = 150.C1 
C1 = 750 / 150 
C1 = 5 mols/L
10 2 10