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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 [...]
Posts Tagged ‘Experiments’
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Don’t do stupid things
Posted by Chemistry Tutor on March 16th, 2010
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 risky behavior. [...]
Chemistry Experiment: Separating a sand and salt mixture
Posted by Chemistry Tutor on February 28th, 2010
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)
Teaching tips
It can be effective to show the separate sand and salt to the whole [...]
Setting up your laboratory
Posted by Chemistry Tutor on February 25th, 2010
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 [...]
What’s the Matter
Posted by Chemistry Tutor on February 24th, 2010
Air, Water and Other Things
Everything in this world takes up space and has weight – even air.
The three states of matter are solid, liquid, and gas. This refers to how a thing feels, how hard it is, or how it moves or looks, even if it’s invisible, like air. A table is a solid object, [...]
Chemistry experiments that you’d want to perform
Posted by Chemistry Tutor on February 23rd, 2010
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 [...]
