Disolución de hidróxido de sodio en agua
Objetivo de la práctica:
Preparar una disolución en agua de 100 ml de NaOH 1 Molar partiendo de que el NaOH tiene un 96% de riqueza en peso.
Materiales:
Botes de lentejas de NaOH 96% riqueza en peso
Cucharas
Matraz de 250 ml
Probeta
Vaso de precipitados de 100 ml
Frasco de Agua destilada
Balanza
Procedimiento:
Primero tuvimos que hacer diferentes cálculos para averiguar la cantidad necesaria de NaOH (ya que estaba a un 96% de riqueza en peso) Después de todos los cálculos averiguamos que neceitamos 4,2 gramos para precipitarlos en agua hasta los 100 ml.
Así que cogimos 4,2 gramos de lentejas de NaOH y las disolvimos en una pequeña cantidad de agua destilada hasta que todo tuviera un estado acuoso. Luego solo tuvimos que echar lo restante de agua destilada hasta los 100 ml.
Fotos del experimento:
Materiales
Disolución de las lentejas de NaOH
Todas las disoluciones juntas
Manuel F.
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