Hemel Private Tuition

Fermentation - Anaerobic respiration Sugar makes Alcohol and Cardon Dioxide. This week I have been fermenting some orange juice so that I can extract the alcohol by distillation. A fun experiment to do. It works quite quickly and soon bubbles of carbon dioxide can be seen

Demonstrating a Neutralisation Reaction for a youth group, as part of our outreach program

Setting up a laser pointer shining through a diffraction grating. The pointer produces not one spot but many as the light is diffracted.

We have been making Nylon. Here are snatom models of the molecules involved. They have the same group at either end of the molecules. They react together forming water.

The Nylon Rope trick is one of the cleverer experiments in chemistry. Two liquids one water based the other oil based floating on top. At the interface nylon is formed.

Setting up a spectroscope and a camera so that students can see the line emission spectra. Some students seem to find it amazingly difficult to see down the spectrascope to see the grid and the emission lines, so doing it this way shows them what they should be looking for.

Studying some of the properties of Iodine. It won't dissolve in water, but it will dissolve in a solution of potassium iodide and its a mucky brown colour, but shake that with some cyclohexane and a beautiful purple colour appears

Creating more video content for the Company and students to watch. Recently we have been looking at the reactions of the Alkali metals

Year 10/11 going back to school.
Look at your books this week
About 1 hr per subject will get you ready for school so you can start the new Term off well.