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Experiencia sobre ebulloscopía.
Con esta práctica se pretende averiguar que ocurre con la temperatura de ebullición del agua cuando disolvemos un soluto en ella, en este caso sal común.
Aspectos Teóricos
Averiguar por que razon varia el punto de ebullición de las sustancias.
Diseño experimental
Material utilizado:
-Vaso de precipitados
- Agua destilada
- Termómetro
- Mechero Bunsen
Diseño de la práctica:
Si vamos añadiendo soluto (NaCl) la temperatura de ebullición de la disolución es mas alta.
100 ml H20 + 10g NaCl 103º
100 ml H20 + 20g NaCl 105º
100 ml H20 + 30g NaCl 107º
Cálculos numéricos
Gramos de sal añadidos al agua
Temperatura de ebullición
10g
103º
20g
105º
30g
107º
Conclusiones
La temperatura de ebullición del agua varia porque al añadir sal, la disolución es mas densa y la disolución tarda mas en alcanzar el punto de ebullición.
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Enviado por: Lima Idioma: castellanoPaís: España