.jpg)
eBook
Option C
Energy was one of the old SL Applied Chemistry options. When Applied Chemistry became subsumed into Chemistry it became Fuels and Energy and then completely disappeared as an option for the 2007 programme...
eBook
Option B
Teenagers have a natural curiosity about who they are and how their body functions. They want to know the answers to questions like, ‘How is light converted into electrical signals in the eye?’, ‘Why...
Blog
Applying IB chemistry to a diet pill Free
One of the reasons why life expectancy is starting to fall in certain parts of the world is the increase in obesity. The number of overweight and obese people worldwide has increased from 857 million...
Blog
Is my own hand rub still safe to use? Free
One of the topics covered in Option D: Medicinal chemistry is antibiotic resistance. This occurs when micro-organisms become resistant to antibacterials. There is considerable concern in many parts of...
eBook
Superconducting metals & X-ray crystallography answers
Answers to Superconducting metals & X-ray crystallography questions. 1. (a) i. The number of closest neighbouring atoms surrounding each atom.ii. The number of coordinate bonds formed by the ligand(s)...
Blog
AI deduces the periodic table Free
There is an interesting report from Professor Shoucheng Zhang, a professor of physics at Stanford University which claims that he has used artificial intelligence to recreate the periodic table. Zhang's...
eBook
Vitamins answers
1. Vitamin K1 is a large non-polar hydrocarbon molecule so will be fat-soluble as it can form London dispersion forces of attractions to non-polar lipids. Because it is non-polar it will be water-insoluble....
eBook
Vitamins questions
1. Vitamin K is the name given to a particular group of vitamins. They are found mainly in leafy green vegetables such as spinach, broccoli and cabbage. Vitamin K1 has the chemical name phylloquinone....
Blog
When were elements discovered? Free
There are many links on the IB chemistry syllabus that relate to when elements were discovered. Probably the most important one is Topic 3.1 The periodic table. One of the reasons why Mendeleyev was able...
eBook
Taxol answers
Answers to Taxol questions 1. 2. (a) The phenyl group and the hydroxyl group lie on opposite sides of the plane (in the enantiomer shown in the question the phenyl group is above the plane and the...