Chemistry Septermber 14/09

In our first class of chemistry we learned about significant digits.
For example: 3.14= 3 significant digits
2.0= 2 significant digits
2 = 1 significant digit
We also learned about scientific notation.
For Example: 145,000,000,000 = 10<sup>11

To learn more about significant digits you can have a look at this website.
http://www.physics.uoguelph.ca/tutorials/sig_fig/SIG_dig.htm
To find out more about scientific notation you can check out this website.
http://www.nyu.edu/pages/mathmol/textbook/scinot.html</sup>