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19. Cálculo de concentraciones

Quiz

(3)
Played 92 %Accuracy 81 Average time 03:27

About this activity

Realiza los cálculos correspondientes de los siguientes problemas de concentración y elige el resultado correcto.

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19. Cálculo de concentraciones
 

19. Cálculo de concentracionesOnline version

Realiza los cálculos correspondientes de los siguientes problemas de concentración y elige el resultado correcto.

by Guillermo Ramírez Flores
1

Se desea conocer la cantidad en libras (lb) de glucosa que contienen 940 g de una disolución al 4.5% m/m.

2

Se desean preparar 75 g de una solución salina al 0.9 % m/m para realizar un lavado nasal a una persona que sufre de rinitis alérgica. ¿Cuántos gramos de cloruro de sodio (NaCl), se necesitan para preparar esta solución?

3

Para elaborar un jabón, se requiere preparar 100 mL de una solución de hidróxido de sodio (NaOH) 0.5 M ¿Cuántos g de NaOH se requieren para preparar dicha solución? NaOH= 40 g/mol

4

Una muestra de 700 g de agua contiene 3.5 mg de arsénico. Calcula las partes por millón de arsénico en la muestra.

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