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Extracción de cafeína (Soxhlet)

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Extracción de cafeína (Soxhlet)

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Played 14 %Accuracy 75 Average time 01:56
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Cuestionario de laboratorio

Created by

Mary luz Mamani Titerico
Mary luz Mamani Titerico
Bolivia

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Extracción de cafeína (Soxhlet)
 

Extracción de cafeína (Soxhlet)Online version

Cuestionario de laboratorio

by Mary luz Mamani Titerico
1

Pregunta 1 En el inicio del video, ¿qué cantidad de muestra de café se introduce en el cartucho de filtro poroso?

2

Pregunta 2 ¿Qué solvente orgánico y en qué cantidad se vierte en el balón de destilación para realizar la extracción?

3

Pregunta 3 ¿Qué método de calentamiento indirecto se utiliza para evaporar de forma segura el solvente orgánico?

4

Pregunta 4 ¿Qué sucede mecánicamente en el extractor Soxhlet cuando la solución acumulada alcanza la parte superior del tubo de sifón?

5

Pregunta 5 ¿Cuántos ciclos completos de lavado/sifonado se ejecutan en el aparato para asegurar una buena concentración de la cafeína?

6

Pregunta 6 Durante la etapa de purificación, ¿qué compuesto químico se añade (0.5g) para eliminar impurezas antes de la filtración?

7

Pregunta 7 ¿Con qué sal anidra se trata la fase orgánica para remover los restos de humedad (agua) antes de evaporar el solvente final?

8

Pregunta 8 ¿Cómo se induce el paso final de cristalización para obtener los cristales puros de cafeína?

 
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