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Simon Dobbs's Shop

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(based on 32 reviews)

I taught chemistry for 25 years. I now provide tuition online. I just like nicely produced, imaginative resources.

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I taught chemistry for 25 years. I now provide tuition online. I just like nicely produced, imaginative resources.
Effect of pH on amino acids
simondobbssimondobbs

Effect of pH on amino acids

(1)
I made a crazy interactive widget to illustrate the ionic forms of glycine. Just for fun really. Please note: in order to provide a rich interactive experience, my interactive resources are mini-web sites local to your computer. After unzipping, they comprise a folder containing the main .html file and another folder containing the graphic resources and my coding to make the resource work. Double click on the .html file and the resource will work. If, however , you move or delete any of the files from this hierarchy, the resource will not work.
Cut & Stick reaction mechanisms
simondobbssimondobbs

Cut & Stick reaction mechanisms

5 Resources
Sixth formers love cut & stick exercises. They are valuable because they familiarise the student with the mechanism, they promote discussion when done in groups, and are different to taking notes and practical work.
Esters worksheet
simondobbssimondobbs

Esters worksheet

(0)
Introduction on the front, eleven questions on naming esters on the back. All in black and white for photocopying cheaply. To save you some time. Useful for GCSE, but could be used at A level.
Chemical Formulae
simondobbssimondobbs

Chemical Formulae

(0)
A simple, photocopiable worksheet (black and white!) that gives practice at interpreting simple chemical formulae. The examples get harder as you proceed. It is comprised of two pages of examples. It is suitable for KS3 and KS4 students. It could be used in class or for homework.
Predict the reaction.
simondobbssimondobbs

Predict the reaction.

(0)
A plant dye is used in a question about reactions of organic functional groups. It is pertinent to the study of phenols. (NB I had previously ommited the reaction of phenol rings with bromine, now tried to include this)
Balancing-ionic-half-equations
simondobbssimondobbs

Balancing-ionic-half-equations

(0)
Quick and short presentation on how to balance the manganate (vii) half equation, to save you time. I have now added the oxidation of ethanol by acidified potassium dichromate (VI) as another example.
Ionic or Covalent?
simondobbssimondobbs

Ionic or Covalent?

(0)
A simple , readily photocopiable worksheet on this important skill: deciding on the bonding in a substance.
The Mole
simondobbssimondobbs

The Mole

(0)
A readily photocopied (B&W) worksheet on calculating numbers of moles. The first page is introductory, with some examples, the second page has ten questions of introductory difficulty.