A MOLE of Atoms=
- 6.02 X 10^23 carbon atoms.
- 15 trillion earths
- The quantity of anything. Any time you want to refer to a large number of things. It's easier to say the unit "mole", than to write 6.02 x 10^23.
- Gives us a consistent method to convert between atoms/ molecules and grams.
- Although it doesn't seem like it at first, once one becomes familiar with a mole, it will be as normal as a dozen or a byte.
- If you had a mole of pennies, you could give out enough money to everyone in the world so that they could spend a million dollars every hour, day and night, for the rest of their lives.
- If you had exactly one mole of sheets of paper, you could make one million equal stacks from sea level on the earth that would pass the sun.
- Given that the volume of a grain of sand is approximately 10-12 m3, and given that the area of the United States is about 1013m2, it therefore follows that a mole of sand grains would cover the United States in approximately one centimeter of sand.
10 NANOMETERS =
- 1nm=10^ -9m (reduced 1 billion meters)
- 10nm= 10^ -8m (.000000001)
- 100nm= 10^ -7m
- 1,000nm= 10^ -6m = 1mm
- size of a virus
- Size of a cell wall
- as a mm is to a km a nm is to a m
- 10 nm = 10 nanometres = 10−8 metres
- 10 nm — lower size of tobacco smoke
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