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Prepare una solucin madre estndar de calcio pesando cuidadosamente en un vaso de precipitados pequeo 625,5 mg de carbonato de calcio, CaCO3. Lavar el carbonato

Prepare una solucin madre estndar de calcio pesando cuidadosamente en un vaso de precipitados pequeo 625,5 mg de carbonato de calcio, CaCO3. Lavar el carbonato de calcio en un matraz volumtrico de 250 ml con aproximadamente 50 ml de agua desionizada. Disolver agregando gota a gota 5 ml de HCl. Diluir a 250 ml con agua desionizada. La concentracin de calcio en esta solucin estndar es de 1000 mg/L, equivalente a 1,0 mg/mL. Compruebe que esto es correcto. Anota tu clculo en tu cuaderno.

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