1. n = c*v
n = 0,3*0,5
n = 0,15 mol
m = 0,15*40 = 6 g
2. n = m/M = 100/106 = 0,9434 mol
c = n/V = 0,9434/1 = 0,9434 mol/dm3
3. n = 40/106 = 0,3774 mol
mvode = 600-40= 560g
V = r*V = 1.067*560 = 576.18 cm3 = 0,57618 dm3
c = n/V = 0,3774/0,57618 = 0,655...