Examen 2 propiedades de solucion UIV FAJARDO UNIVERSIDAD INTERAMERICANA DE PUERTO RICO RECINTO DE FAJARDO Departamento de Ciencias y Tecnología Ejercicios de practica: Propiedades de las soluciones I. Lea cuidadosamente cada pregunta y conteste en el espacio provisto. Demuestre los cálculos usados para llegar a la respuesta. 7. Determine el punto de fusión de una solución que contiene \( 10.0 \mathrm{~g} \) de glucosa \( \left(\mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6}\right) \) en \( 100 \mathrm{~g} \) de agua. El \( \mathrm{k}_{\mathrm{f}} \) de agua es \( 1.86^{\circ} \mathrm{C} / \mathrm{m} \). La masa molar de glucosa es \( 180.16 \mathrm{~g} / \mathrm{mol} \). El punto de fusión de agua pura es \( 0.0^{\circ} \mathrm{C} \). 8. Determine el punto de fusión de una solución que contiene \( 22.0 \mathrm{~g} \) de octano \( \left(\mathrm{C}_{8} \mathrm{H}_{18}\right) \) disueltos en \( 148 \mathrm{~g} \) de benceno. El punto de fusión de benceno puro es \( 5.50^{\circ} \mathrm{C} \) y su \( \mathrm{K}_{\mathrm{f}} \) es \( 5.12^{\circ} \mathrm{C} / \mathrm{m} \). Preparado por: Denisse Alequin Torres, Ph.D. Marzo 2019 INTER FAJARDO UNIVERSIDAD INTERAMERICANA DE PUERTO RICO RECINTO DE FAJARDO Departamento de Ciencias y Tecnología
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The first step is to calculate the molality of the solution. Molality (m) is defined as the number of moles of solute per kilogram of solvent. The number of moles of glucose can be calculated as follows: Moles of glucose = mass of glucose / molar mass of Show more…
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