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m (molal) = mol sto ÷ kg ste ---> kgste = nsto ÷ m
Consideraciones: Agua como solvente
1200g × ( 1 kg / 1000 g ) = 1,2kg
Mol sto = 1,2 kg ste × ( 2,50 mol sto / 1 kg ste ) = 3 mol
Solvente: 3mol sto ÷ ( 1 kg ste / 1.5 mol sto ) ---> 2 kg H2O