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Una solucin contiene 3,75 g de un hidrocarburo puro no voltil en 95 g de acetona. Los puntos de ebullicin de la acetona pura y
Una solucin contiene 3,75 g de un hidrocarburo puro no voltil en 95 g de acetona. Los puntos de ebullicin de la acetona pura y la solucin son 55,95 C y 56,50 C, respectivamente. La constante molal del punto de ebullicin de la acetona es 1,71C. kg/mol. Cul es la masa molar del hidrocarburo?
Masa molar = __________g/mol
Qu masa de glicerina C3H8O3, un no electrolito, debe disolverse en 200,0 g de agua para dar una solucin con un punto de congelacin de -2,80 C? Kf para H2O es 1.86C? kg/mol.
Masa = ___________g
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