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n= 1,5 mola
V = 2dm³
Cm= n÷V = 1,5÷2 = 0,75 [mol/dm³]
Zad 2.
M= 16 + 2×1= 18 [g/mol]
1 mol - 18g
x mola - 36 g
x= (1mol × 36g) ÷ 18g = 2 mole (H₂O)