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Fynjy0 [20]
3 years ago
5

Se prepara una concentración molar 0.5M de hidróxido de sodio (NaCH) con la finalidad de determinar el grado de acidez de una be

bida embotellada. Calcula la cantidad de gramos de hidróxido de sodio (NaCH) que se requiere para preparar 5 litros de dicha solución.​
Chemistry
1 answer:
Agata [3.3K]3 years ago
3 0

Answer:

100 g

Explanation:

Primero hay que <u>calcular el número requerido de moles de NaOH</u>, usando la <em>definición de molaridad</em>:

  • Molaridad = moles / litros
  • 0.5 M = moles / 5 L
  • moles = 2.5 moles

Ahora hay que <u>convertir 2.5 moles de NaOH en gramos</u>, usando su <em>masa molecular</em>:

  • 2.5 mol * 40 g/mol = 100 g

Se requieren 100 gramos de NaOH.

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