Asdad Essay

1102 words - 4 pages

Panamerican SchoolReporte #4Factores que Afectan la Velocidad de DisoluciónOscar Leon12B CienciasTeacher Ismarys de Riley y Teacher Laura FuentesPrimer Trimestre15/5/14IntroducciónLas disoluciones son mezclas homogéneas de dos o más soluciones. Las disoluciones se caracterizan por tener una fase homogénea, o sea, tiene las mismas características en todos sus puntos, o lo que es lo mismo: el aspecto, sabor, color, etc. son siempre los mismos. Esta está compuesta por lo que es un soluto y un disolvente. El soluto es el componente que se encuentra en distinto estado físico que la disolución. El disolvente es la sustancia que está en igual estado físico que la disolución. Cuando hay una ruptura de enlaces hay una reacción química y un cambio energético. El soluto puede ser un gas, un líquido o un sólido, y el disolvente puede ser también un gas, un líquido o un sólido. Por ejemplo, el agua con gas es un ejemplo de un gas disuelto en un líquido. Las mezclas de gases, como ocurre en la atmósfera, son disoluciones.Las disoluciones se clasifican por su estado de agregación que vendría siendo la disolución Coloidal. Y existen dos clasificaciones de disoluciones diferentes por estado de concentración: Disoluciones Empíricas, y Disoluciones Valoradas. Las coloidales son soluciones en donde reaccionan dos compuestos de dos estados distintos. Las empíricas no toman en cuenta la cantidad numérica de solutos y disolventes presente. Y las valoradas sí toman en cuenta las cantidades numéricas exactas de soluto y solvente que se utilizan en una disolución. Cada una estas clasificaciones se dividen en diferentes categorías:ColoidalesSolidas: Solido en Solido, Gas en Solido, Liquido en SolidoLiquidas: Solido en Líquido, Gas en Líquido, Liquido en LíquidoGaseosas: Gas en Gas, Solido en Gas, Liquido en GasEmpíricasDisolución Diluida: aquella en donde la cantidad de soluto que interviene está en mínima proporción en un volumen determinado.Disolución Concentrada: tiene una cantidad considerable de soluto en un volumen determinado.Disolución Insaturada: no tiene la cantidad máxima posible de soluto para una temperatura y presión dadas.Disolución Saturada: tienen la mayor cantidad posible de soluto para una temperatura y presión dadasDisolución Sobresaturada: contiene más soluto del que puede existir en equilibrio a una temperatura y presión dadas.ValoradaMolarValoradaEn el laboratorio 4, estaremos estudiando algunos factores que afectan la velociodad de disolución. Aunque solo hayamos usado tres ejemplos de factores que afecten la velocidad (Efectos del tamaño de la partícula, efecto de la agitación...

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