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Pureza del Reactivo

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Pureza del Reactivo

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About this activity

Quiz sobre pureza y su impacto

Created by

Miguel Garza
Miguel Garza
Mexico

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Pureza del Reactivo
 

Pureza del ReactivoOnline version

Quiz sobre pureza y su impacto

by Miguel Garza
1

El porcentaje de pureza se obtiene dividiendo la masa de impurezas entre la masa total.

2

La pureza única se mide siempre con espectroscopia de masas y no con métodos de laboratorio tradicionales.

3

La pureza se puede determinar por valoración (titulación), gravimetría, cromatografía o pérdida por secado.

4

El grado técnico 90-95% se usa para limpieza e industria básica.

5

La baja pureza puede provocar cálculos estequiométricos incorrectos y rendimientos falsos.

6

La pérdida por secado no sirve para estimar impurezas en un reactivo.

7

El estándar p.a. significa pro analysi, para análisis, en laboratorio.

8

El grado ultrapuro se usa principalmente para alimentos y bebidas.

9

La pureza de un reactivo es el porcentaje en masa del compuesto químico deseado.

10

Si un reactivo dice 100% de pureza, no contiene ninguna impureza.

11

En medicina, reactivos de baja pureza pueden generar medicamentos inseguros o dosis incorrectas.

12

Si tienes 100 g de NaOH al 98%, 98 g son NaOH real y 2 g son impurezas.

13

La pureza de un reactivo es la densidad del producto y no su composición.

14

La fórmula básica es % Pureza = (Masa de sustancia pura / Masa total del reactivo) × 100.

 
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