Today we began a block on the chemistry of acids and bases. We introduced the basic definitions and then did a lab where we used litmus paper as an indicator to find the pH of many different substances.
Homework for next week is to do the homework from last week. I wasn't very clear in last week's homework assignment so I would like folks to take what we discussed in class today and use that to finish last week's homework.
Also, extra credit possibility (possible 10 points):
We tested bunches of cleaners today for their pH. You probably found that some cleaners are basic while others are acidic. For extra credit, do a bit of research to find out what is the chemistry behind cleaning. Why are somethings cleaned with basic solutions while others are cleaned with acidic solutions? Include at least two reaction equations in your paper. I'd like this to be at least 500 words in order to get full credit.
Another extra credit possibility (possible 10 points):
We mentioned that mixing bleach with ammonia is a bad idea. Find out why. What is created and why is it dangerous? You'll find this is a multi-stage reaction. Include the formulas as well as all the reactants. There are more than one dangerous thing here so please list all of them and tell me why they are dangerous. Is ammonia the only thing that is bad to mix with bleach? What are some other "no-no's" and tell me why they are dangerous as well.
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