Monday, January 10, 2011

Day 1 Activity 2 1/10/11 Atomic Mass

1. What is Atomic Mass?

2. What is a dozen?

3. What is a case?

4. What is a gross?

5. What is a mole?

6. . How many planet earth's are needed to have a mole of people?

2 comments:

  1. 1. The atomic mass is the total number of protons, neutrons, and electrons in one single atom aka (Isotope). (Isotope is the same number of protons and different number of electrons)The elements atomic mass has to be concise and correct.

    2. A dozen is 12, however a bakers dozen is 13 :)

    3. A case is 24 objects.

    4. A gross is a dozen's dozen.

    5. The atomic mass of 1 mole of atoms.
    Mole = 6.02 x 10623
    Example all sand particles on beach
    6. 6 billion for 1 earth.
    6*10^9X = 6.02*10623
    /6*10^9 /6*10^9
    Planets = 1.0033* 10^14

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  2. (correction)
    5. The atomic mass of 1 mole of atoms.
    Mole= 6.02* 10^23
    Example all sand particles on the beach

    6.6 billion for earth.

    6*10^9X = 6.02*10^23
    /6*10^9 /6*10^9
    X or Planets = 1.003*10^14

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