Archive for the ‘Experiments’ Category

Laboratory notebook format

Use the following general format for recording an experiment in your lab notebook: Introduction The following information should be entered before you begin the laboratory session: Date Enter the date at the top of the page. Use an ambiguous date format, such as 2 September 2008 or September 2, 2008 rather than 2/9/8 or 9/2/8. […]

Maintaining a laboratory notebook

A laboratory notebook is a contemporaneous, permanent primary record of the owner’s laboratory work. In real-world corporate and industrial chemistry labs, the lab notebook is often a critically important document for both scientific and legal reasons. The outcome of zillion-dollar patent lawsuits often hinges on the quality, completeness, and credibility of a lab notebook. Many […]

Don’t do stupid things

This a list of strictly NOT TO DO STUPID THINGS in a chemistry laboratory: Never eat, drink or smoke in the laboratory All laboratory chemicals should be considered toxic by ingestion, and the best way to avoid ingesting chemicals is to keep your mouth closed. Eating or drinking (even water) in the lab is very […]

Chemistry Experiment: Separating a sand and salt mixture

Topic Separation techniques Timing 45 minutes Description In this experiment students use simple processes to separate sand and salt. Apparatus and equipment (per group) 250 cm(3) Beaker Filter funnel and paper Evaporating dish Tripod Bunsen burner Gauze Glass rod for stirring Chemicals (per group) A mixture of salt and sand (about 20 percent of salt) […]

Setting up your laboratory

In some ways, a laboratory is very much like a library; but instead of looking up information, the laboratory worker find out about it for himself. In both places the working conditions are similar. Librarians must catalog books in a library and store them in a neat and orderly fashion. Chemists must label their equipment […]

Chemistry experiments that you’d want to perform

Very often, people forget that not only can studying chemistry be fun, teaching it can be too. Teachers who employ various aids to teach chemistry or for that matter any subject, have been found to receive better feedback from students in general. To make learning chemistry fun, it is the duty of a teacher to […]

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