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Se midi la presin osmtica de una solucin de poliestireno en tolueno de 6.613 g dm-3 a 25C, y la presin, expresada en funcin de

Se midi la presin osmtica de una solucin de poliestireno en tolueno de 6.613 g dm-3 a 25C, y la presin, expresada en funcin de la altura del solvente, fue de 1.910 cm. La densidad del tolueno a esta temperatura es de 1,004 g cm3. Calcule la masa molar del polmero usando PI=[B]RT

Donde [B]= nb/V como la concentracin molar de la solucin.

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