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A Blog to support Chemistry at Marlborough School, St Albans
What's new?
Welcome to another year. Please check here regularly for new information and resources to support your learning.
Black Gold
Can we live without it?
Is this You?
You Might Be a Chemist if...
you carry your lab safety goggles around with you at all times, just in case...
you don't drink water, you drink H2O.
you start disagreeing with movies and TV shows on scientific aspects.
you carry a base solution around with you at all times, just in case one of those freak Hydrochloric acid spills happen.
you become very agitated when people refer to air as Oxygen, and proceed to list all of the components of air.
instead of writing ozone you write O3.
you start referring to the smell of nail polish remover as an acetone smell.
you no longer ask for Tylenol, you ask for acetaminophen.
you actually enjoy going to Chemistry class.
you think a mole is a unit of amount, rather than a small furry animal in your lawn.
you pronounce unionized as "un-ion-ized", instead of "union-ized".
you wash your hands before you go to the bathroom.
you start explaining the condensation of water vapour every time your soda can has water drops and people think water is coming out of the can.
Useful Websites
Science on the BBC
BBC News | Science/Nature | UK Edition
New Scientist - Latest Headlines
Blog Archive
Suggested Text Books for A2. All are available for immediate delivery from Amazon.
- AS - Chemistry 1 ISBN 978-0521787789
- AS - Essential AS Chemistry for OCR ISBN 978-0748785056
- A2 - Chemistry 2 ISBN 978-0521798822
- A2 - Biochemistry ISBN 978-0521797511
- A2 - Essential A2 Chemistry for OCR ISBN 978-0748785063
- AS and A2 - Chemistry (Collins Advanced Science) ISBN 978-0007135974
- AS - AS Chemistry: Revision Guide Pt. 1 & 2 ISBN 978-1841469768
- A2 - A2 Level Chemistry: Revision Guide ISBN 978-1841463667
- AS and A2 - Calculations in AS / A Level Chemistry ISBN 978-0582411272
- A Dictionary of Chemistry (Oxford Paperback Reference) ISBN 978-0198609186
Biochemistry Links
Human Amylase
7 comments:
One of the Upper Sixth has used the AS and A2 revision site and found it very useful. This site has activities and notes linked to all of the main topics. Check it out. It would be a good resource to keep up to date with the lessons - it doesn't have to be used just before the exams!
lol that joke genuinely made me laugh
so heres my story,
the frost was cold and crisp beneeth my feet as i walked that long walk to the field study center. as the heaters were broken, most people found themselves shivering, myself and a few others found some lab coats to fight off the cold for as long as possible.
within 15 minutes we were setting up for a highly reactive experiment involving rare bulgarian potatoes and hydrogen peroxide.
as the H2O2 was added i put the bung on the test tube.
i instantly saw the mistake, a piece of the potato had got stuck with in the delivery tube. as i jumped away from the now explosive mix, i covered my eyes.as i landed i could hear the tube explode as bullets of potato flew in all directions. several peices hit me and another student, who was just in the wrong place at the wrong time. although we escaped. 1 student got a peice in her knee. she may not walk again.
another went through the wall just clipping someones ear.
although this makes my 2 scars look like a graze this was one lesson i wouldnt forget.
remember to wear googles.
So that tricky question. You all managed to work out the answer to the previous one as 1.2 x10-3. Well done. In the stem of the question it mentions a molar quantity. The problem is that this is 6 times smaller than the gas we produced. This means that there must be 6 amino acid residues in the short peptide chain. As one mole of the peptide produces the equivalent of 6 moles of Nitrogen gas. A neat question - tricky but predictable. ;-0
lol i have 3/5 of the posts, muhahaha.
thought i would wish the whole class good luck on friday. no idea what we are doing but hopefully i wont blow up sum vegetables, or spurt liver blood everywhere.
my bad
If H2O is the formula for water, what is the formula for ice?
H2O-CUBED!!!
haha sorry i found it amusing :D
This post is on behalf of Jon Bowden -
Mercury-mercury bonding is very weak because its outer electrons are not shared readily. (In fact mercury is the only metal that doesn't form diatomic molecules in the gas phase).
Heat easily overcomes the weak binding between mercury atoms, and mercury boils and melts at lower temperatures than any other metal. The thin valence electron sea makes mercury's ability to conduct electricity and heat much poorer than expected for a metal at that position in the periodic table.
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