Access Science 2010-05-18T10:51:06Z tag:www.sutsci.org,2010:/access/19 Movable Type Copyright (c) 2010, dcox Alcohols 2010-05-18T10:51:06Z 2010-05-18T11:51:06+00:00 tag:www.sutsci.org,2010:/access/19.902 2010-05-18T10:51:06Z Alcohols contain the -OH functional group and are named with the suffix -ol as in ethanol or butan-1-ol. Their structures may be classified as Primary Secondary or tertiary. This designation is decided by looking at the "alcoholic" carbon atom and... dcox http://sutsci.org/008/ kosiceax913@blueyonder.co.uk Alcohols contain the -OH functional group and are named with the suffix -ol as in ethanol or butan-1-ol.

Their structures may be classified as Primary Secondary or tertiary. This designation is decided by looking at the "alcoholic" carbon atom and counting how many other carbon atoms that is bonded to. The "alcoholic" carbon atom is the one which carries the alcohol functional group.

The principal reaction of alcohols is oxidation, effected by a number of reagents but potassium dichromate (VI) in sulphuric acid is perhaps ther most common.

This is an orange solution that will turn green [or blue/green] if the alcohol has been oxidised successfully.

Oxidation is best described as "addition of [an atom] of oxygen" or as "removal of hydrogen [with an atom of oxygen] as water".

Primatry alcohols are oxidised first to aldehydes and thence to carboxylic acids. Secondary alcohols are oxidised to ketones only and tertiary alcohols are resistant. This is because in the last group of compounds the alcoholic carbon atom does not have any hydrogen atoms attached and this is essential for the mechanism to take place.

]]> Monday April 19th 2010-04-17T14:34:22Z 2010-04-17T15:34:22+00:00 tag:www.sutsci.org,2010:/access/19.893 2010-04-17T14:34:22Z Due to unforseen circumstances I will not be in College on Monday morning [19th April] Apologies Dave... dcox http://sutsci.org/008/ kosiceax913@blueyonder.co.uk Due to unforseen circumstances I will not be in College on Monday morning [19th April]

Apologies

Dave

]]> isomer numbers 2010-03-17T09:41:39Z 2010-03-17T09:41:39+00:00 tag:www.sutsci.org,2010:/access/19.891 2010-03-17T09:41:39Z The number of structural isomers that can be produced rises rapidly with the number of carbon atoms.. for example, the alkane with 4 carbon atoms has 2 isomers; the one with 7 has 9 structures ...C 10 has 75...and C20...... dcox http://sutsci.org/008/ kosiceax913@blueyonder.co.uk The number of structural isomers that can be produced rises rapidly with the number of carbon atoms.. for example, the alkane with 4 carbon atoms has 2 isomers; the one with 7 has 9 structures ...C 10 has 75...and C20... has 366319!

]]> message board... 2010-03-10T13:01:37Z 2010-03-10T13:01:37+00:00 tag:www.sutsci.org,2010:/access/19.890 2010-03-10T13:01:37Z visit http://www.bodmas.org/vanilla apply for membership and post your comments/revision questions etc... dcox http://sutsci.org/008/ kosiceax913@blueyonder.co.uk visit

http://www.bodmas.org/vanilla


apply for membership


and post your comments/revision questions etc

]]> up^^^^^^^^^^ 2010-03-03T12:01:56Z 2010-03-03T12:01:56+00:00 tag:www.sutsci.org,2010:/access/19.881 2010-03-03T12:01:56Z Although this is written for OCR Chemistry, it contains lots of useful stuff Just be selective as to waht you look at, remember that there is much more on the web site than is needed for Principles 2. http://www.knockhardy.org.uk/sci.htm hope... dcox http://sutsci.org/008/ kosiceax913@blueyonder.co.uk Although this is written for OCR Chemistry, it contains lots of useful stuff

Just be selective as to waht you look at, remember that there is much more on the web site than is needed for Principles 2.

http://www.knockhardy.org.uk/sci.htm

hope you find it helpful..

]]> for a little light relief... 2010-02-08T15:59:16Z 2010-02-08T15:59:16+00:00 tag:www.sutsci.org,2010:/access/19.887 2010-02-08T15:59:16Z the answers are all to do with chemistry [some are elements]... Download file... dcox http://sutsci.org/008/ kosiceax913@blueyonder.co.uk the answers are all to do with chemistry [some are elements]...


Download file

]]> just think about this.... 2010-02-08T15:18:32Z 2010-02-08T15:18:32+00:00 tag:www.sutsci.org,2010:/access/19.885 2010-02-08T15:18:32Z see; There's no need to worry after all!... dcox http://sutsci.org/008/ kosiceax913@blueyonder.co.uk

solar-system.jpg

see; There's no need to worry after all!

]]> some energetics notes 2010-02-04T12:15:06Z 2010-02-04T12:15:06+00:00 tag:www.sutsci.org,2010:/access/19.880 2010-02-04T12:15:06Z ... in case you missed them Download file... dcox http://sutsci.org/008/ kosiceax913@blueyonder.co.uk ... in case you missed them

Download file

]]> Thursday 28th January 2010-01-27T22:23:46Z 2010-01-27T22:23:46+00:00 tag:www.sutsci.org,2010:/access/19.876 2010-01-27T22:23:46Z Just a reminder that I will not be in College on this day. Apologies. Sessions will recommence on Mondayt Febraury 1st at 9am.... dcox http://sutsci.org/008/ kosiceax913@blueyonder.co.uk Just a reminder that I will not be in College on this day. Apologies.
Sessions will recommence on Mondayt Febraury 1st at 9am.

]]> Principles of Chemistry 2 2010-01-20T14:09:17Z 2010-01-20T14:09:17+00:00 tag:www.sutsci.org,2010:/access/19.869 2010-01-20T14:09:17Z here is the course outline for this second module. Note that there is no practical component. Notes etc will follow as the course develops. The content will be covered in the order given, and a week by week summary will... dcox http://sutsci.org/008/ kosiceax913@blueyonder.co.uk here is the course outline for this second module. Note that there is no practical component.

Notes etc will follow as the course develops.
The content will be covered in the order given, and a week by week summary will be published here soon.


Download file

]]> flame tests slides 2010-01-11T13:30:56Z 2010-01-11T13:30:56+00:00 tag:www.sutsci.org,2010:/access/19.865 2010-01-11T13:30:56Z for your review... Download file... dcox http://sutsci.org/008/ kosiceax913@blueyonder.co.uk for your review...

Download file

]]> snow lessons! 2010-01-06T22:51:11Z 2010-01-06T22:51:11+00:00 tag:www.sutsci.org,2010:/access/19.864 2010-01-06T22:51:11Z Pity that the snow caused the closure of the college. Advice is to read about flame colours for compounds of Groups 1 and 2 metals and the origins of these colours. I have touched on this before, but a little... dcox http://sutsci.org/008/ kosiceax913@blueyonder.co.uk Pity that the snow caused the closure of the college.
Advice is to read about flame colours for compounds of Groups 1 and 2 metals and the origins of these colours. I have touched on this before, but a little background reading won't go amiss!
stay safe and warm!

]]> Practical 2009-12-10T08:43:06Z 2009-12-10T08:43:06+00:00 tag:www.sutsci.org,2009:/access/19.861 2009-12-10T08:43:06Z Another chance to do this if you were absent ; Thursday 10th December 2009. 1 - 3 pm in rm 317. Otherwise an individual arrangemnet must be made.... dcox http://sutsci.org/008/ kosiceax913@blueyonder.co.uk Another chance to do this if you were absent ; Thursday 10th December 2009. 1 - 3 pm in rm 317. Otherwise an individual arrangemnet must be made.

]]> Risk assessments 2009-12-02T15:51:33Z 2009-12-02T15:51:33+00:00 tag:www.sutsci.org,2009:/access/19.858 2009-12-02T15:51:33Z The assessed piece of practical work requires a risk assessment to be submitted at the same time. Attached is one written for a practical examination to show the type of document needed. A single side of A4 is sufficient. Download... dcox http://sutsci.org/008/ kosiceax913@blueyonder.co.uk The assessed piece of practical work requires a risk assessment to be submitted at the same time. Attached is one written for a practical examination to show the type of document needed. A single side of A4 is sufficient.

Download file

]]> New Deadline for Chem 1 coursework 2009-12-02T15:49:32Z 2009-12-02T15:49:32+00:00 tag:www.sutsci.org,2009:/access/19.857 2009-12-02T15:49:32Z In response to representations it has been decided to extend the deadline for the submission of Chemistry 1 coursework to Thursday December 17th. I am in college that day until about 3pm. It is hoped that this will enable all... dcox http://sutsci.org/008/ kosiceax913@blueyonder.co.uk In response to representations it has been decided to extend the deadline for the submission of Chemistry 1 coursework to Thursday December 17th. I am in college that day until about 3pm. It is hoped that this will enable all work to be completed.

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