A simple handout illustrating a simple calculation of percentage yield. May save you some time.

Info sheet followed by a bit of practice in the calculations.

A simple cut & stick exercise

I came across an exam question which asked the student to identify an ester from two apparently very similar structures and a proton NMR spectrum. This is my attempt to explain the spectra pictorially. I will bundle it with my other ‘NMR examples explained’ series. (NB, I used spectra from a database. The original question shows an expansion of the multiplet peak due to methyl groups as a heptet, ie seven peaks, due to six protons, although this appears to be simulated. The methyl groups appear to be chemically equivalent to me so the multiplet should be a quartet, due to three protons, but I cannot tell from the database spectra. I have stuck with the exam board interpretation and mark scheme. The question is OCR A F324 Wednesday 27 January 2010 question 4)

Hopefully a clear display to help with redox. 2 pages.

The traditional textbook graph of this data is very confused. I feel that my presentation of the data emphasizes the role played by hydrogen bonding more clearly. The influence of atomic size on boiling point is also clearly shown by the bp of the noble gases.

I made a whackey little video about lithium ion cells that may amuse.

A worksheet asking questions about the chemistry of unknown substances, as the exam boards do.

I improved my 'learn the functional groups " video by giving time for students to recognise & shout out the name before the name appears.

A learn-by-not-working activity suitable for the end of the summer term. Comes complete with the solution. 65 words from the three sciences. Word list on separate page.

For GCSE chemistry enjoyment

I made a clunky little video about this.

Quick and rough. 7 slides to summarize ways of representing molecules using glycine as an example. Might save you some time.

I made a crazy interactive slide show widget thingy on this topic. 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.

I made a little video of polymerising ethene. It probably will be of no use at all.

This is quite a challenging wordsearch, although it appears simple. ( I have now included a pdf of 30 atomic structure bingo cards)

I have made a little interactive cartoon thingy to reinforce or introduce the two types of bond fission, heterolysis and homolysis. Just click on the bond fission html file and it opens in your browser. You can make it huge using the browser zoom controls. 19.9.19- apologies the file previously uploaded was done in error. It should now work 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. stdobbs.com ©D&D production

I made a fun video on this topic.

Just practice at recognising types of chemical species.

I made a simple summary sheet as a revision resource. It aims briefly to summarise the benzene evidence.