La aplicación de lo aprendido en beneficio de la humanidad es algo de bastante importancia para el mundo de la ciencia, especialmente para la química. Si los estudiantes no experimentan en el laboratorio y no aplican lo aprendido en clases, lamentablemente lo olvidaran y no habrá una experiencia satisfactoria de aprendizaje. El mundo real de la química, se vive en el laboratorio, mediante las observaciones, mediciones, hipótesis, interpretaciones, entre otros. Por tal razón, en el laboratorio en casa de hoy, te enseñaremos a preparar un repelente de insectos casero, y así llevar a cabo tu proyecto de química y no fallar en el intento.
Reactivos a utilizar
- 30 g de cloruro de calcio
- 30 g de alcanfor
- 240 ml de alcohol desnaturalizado
Procedimiento
- Mezcla los 30 g de cloruro de calcio y 30 g de alcanfor en un vaso de precipitados de 500 ml (puedes usar algún otro recipiente de vidrio que tenga esa capacidad).
- Ahora agrega los 240 ml de alcohol desnaturalizado y agita hasta que se disuelva totalmente el alcanfor.
FUENTE
- Suárez F, Freddy. Química: Ejercicios de Laboratorio. Editorial romor.
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