Demonstrating microscale gas reactions using disposable plastic syringes
Issue 340 | Page 49 | Published Mar 2011
Description
This article provides an example of a teacher's learning, since the author only became aware of the microscale technique described very late in his professional career. The technique provides a convenient method of preparing and manipulating gases on a very small scale and a relatively safe means of demonstrating reactions that would be very hazardous on a larger scale. Safety issues are stressed but it is important that anyone attempting to follow the procedures checks these. If no suitable risk assessment appears to be available, CLEAPSS or SSERC should be consulted for further advice. Teachers also need to practise the various techniques and assure themselves of their competence to carry them out safely, minimising any danger to themselves or others.
More from this issue
Well, of course you know that a battery is made of cells in series, but I have just discovered a great way to show this to a class.
Microscale techniques can assist chemists to carry out some experiments which on a large scale would be quite hazardous. Hydrogen oxygen...
This research is a high-resolution analysis of grade 6 (ages 11-12) children's interview transcripts about the operation of power stations,...