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x moli CaCl2 - 50 g CaCl2
x = 0,45 mola CaCl2
Masa roztworu = 50 g (CaCl2) + 150 g (woda) = 200 g
1,23 g r-ru - 1 cm3
200 g r-ru - x
x = 162,60 cm3
Stężenie molowe:
0,45 mola CaCl2 - 162,6 cm3
x moli - 1000 cm3
x = 2,77 mol/dm3