Question
De una solucin preparada con 154,0 mL de H_2 SO_4 (densidad: 1,84 g/mL) con 346,0 mL de agua (solucin A), se toman 15,0 mL y
De una solucin preparada con 154,0 mL de H_2 SO_4 (densidad: 1,84 g/mL) con 346,0 mL de agua (solucin A), se toman 15,0 mL y se llevan a un volumen aforado final de 300 mL (solucin B). 150,0 mL de la solucin B, se mezclan en un baln aforado de 250 mL con 30,0 mL de una solucin al 50 % p/v de H_2 SO_4, produciendo la solucin C. Si a 200,0 mL de la solucin C se le evapora 1/3 del solvente (solucin D), responder: (H = 1g/mol, S = 32 g/mol y O = 16 g/mol)
a.Cul es la molalidad de la solucin A
b.Cul es la molaridad de la solucin B
c.Cul es el % p/v de la solucin C
d.Cul es la molaridad de la solucin D
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