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DISOLUCIONES O SOLUCIONES
1. Se disuelven 20 g da hidróxido de sodio en 560 g de agua. Calcular la concentración de la
disolución en % m/m Rta 3,45
2.Una solución acuosa de sulfato de amonio contiene 240 g de sal / kg de solución. Calcular:
a) g de st/ 100 g de dsv Rta:31,58 g de sto/ 100g de dsv
b) g de st/ 1000 cm 3 de disolvente Rt: 315,8 g de sto en 100 cm 3 de dsv
3. Se preparó una solución de cloruro de sodio disolviendo 10 g de esa sal en 60 g de agua. Calcula
el porcentaje en peso del soluto en la solución obtenida Rta: 14,29 %
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Answers: 2
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DISOLUCIONES O SOLUCIONES
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