You can watch two videos on the industrial production of ammonia (Haber process) and on the industrial production of sulfur trioxide and sulfuric acid (Contact process) on the Alchemy site of the Royal Society of Chemistry.
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At the following link you can find flash simulations of acid-base titration curves. You can set the variables of the titration and observe the titration curves. Play around and try to compare the curves to what you expect from theory.
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A new strain of influenza is infecting people in Mexico and the United States and may have killed up to 60 people in Mexico, global health officials said on Friday.
The CDC has analyzed samples of the H1N1 virus from some of the U.S. patients, all of whom have recovered, and said it is a never-before-seen mixture of viruses from swine, birds and humans.
Here are some facts from the U.S. Centres for Disease Control and Prevention about how swine flu spreads in humans:
* Swine flu viruses typically sicken pigs, not humans. Most cases occur when people come in contact with infected pigs or contaminated objects moving from people to pigs.
* Pigs can catch human and avian or bird flu. When flu viruses from different species infect pigs, they can mix inside the pig and new, mixed viruses can emerge.
* Pigs can pass mutated viruses back to humans and they can be passed from human to human. Transmission among humans is thought to occur in the same way as seasonal flu — by touching something with flu viruses and then touching their mouth or nose, and through coughing or sneezing.
* Symptoms of swine flu in people are similar to those of seasonal influenza — sudden fever, coughing, muscle aches and extreme fatigue. This new strain also appears to cause more diarrhea and vomiting than normal flu.
* Vaccines are available to be given to pigs to prevent swine influenza. There is no vaccine to protect humans from swine flu although the CDC is formulating one. The seasonal influenza vaccine may help provide partial protection against swine H3N2, but not swine H1N1 viruses, like the one circulating now.
* People cannot catch swine flu from eating pork or pork products. Cooking pork to an internal temperature of 160 degrees Fahrenheit (71 degrees Celsius) kills the swine flu virus as it does other bacteria and viruses.
The presentation on acids and bases (SL) is available at the corresponding chapter and at this link.
The next meeting with my advisees will take place on Thursday, April 9:
IB1 at 12:00 (2nd break)
IB2 at 12:45 (3rd break)
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Click on the drawing below to view and download a mindmap of the Acids & Bases chapter. Boxes in yellow color are for HL only.
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Click here to see some good examples of things to write in an exam if you really want to fail! 
P.S.: Thanks to D.M. for sending me the material.
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IB1 SL:
- Homework handout on Le Chatelier principle (photocopy).
Deadline: Thursday, 19 March 2009
IB1 HL:
- Homework handout on Le Chatelier principle (photocopy).
- Homework handout on Kc.
Deadline: Friday, 20 March 2009
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Watch videos on the effect of pressure and on the effect of temperature on the position of dynamic equilibrium.
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IB1 SL:
- Homework handout on plotting concentrations at equilibrium.
- Homework handout on Le Chatelier principle.
IB1 HL:
- Homework handout on plotting concentrations at equilibrium.
- Homework handout on Le Chatelier principle.
Deadline: Friday, 13 March 2009
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IB1 SL:
Exercises 7.1.1 and 7.1.2 from the textbook.
Deadline: Thursday, 5 March 2009
IB1 HL:
No HW.
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The Design of the experiment on the decomposition of hydrogen peroxide has to be handed in by
Friday, 27 February 2009
IB1 SL:
No homework.
IB1 HL:
- Exercises 16.2 from the book.
Deadline: Friday, 27 February 2009
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IB1 SL:
- Homework handout on kinetics experiments.
Deadline: Friday, 20 February 2009
IB1 HL:
- Homework handout on order of reaction and activation energy.
Deadline: Friday, 20 February 2009
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IB1 SL:
- Homework handout on collision theory and kinetics.
Deadline: Thursday, 5 February 2009
IB1 HL:
No homework.
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IB1 SL:
Homework handout on plotting data and calculating the reaction rate.
Deadline: Wednesday, 28 January 2009
IB1 HL:
- Homework handout on plotting data and calculating the reaction rate.
- Homework handout on collision theory and kinetics.
Deadline: Thursday, 29 January 2009 (NOT FRIDAY)
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