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Wednesday, March 23

  1. msg 3/21/11 The Mole: Continued message posted 3/21/11 The Mole: Continued Nice summary. Link and question?
    3/21/11 The Mole: Continued
    Nice summary.

    Link and question?
    4:29 am
    MrSwitzer MrSwitzer

Tuesday, March 22

  1. msg 3/21/11 The Mole: Continued message posted 3/21/11 The Mole: Continued Today we had the chance to extend our knowledge on the mole. We completed our helpful "Types o…
    3/21/11 The Mole: Continued
    Today we had the chance to extend our knowledge on the mole. We completed our helpful "Types of Conversions" worksheet.
    -AMU(mass) >>Atoms, Molecules, Formula Units(particles)
    -Atoms,Molecules,Formula Units(particles) >>AMU (mass)
    -Moles (quantity) >> Atoms, Molecules, F.U (amount)
    -Atoms, Molecules, F.U(amount) >> Moles (quantity)
    -Moles(quantity) >> Grams(mass)
    Grams(mass) >> Moles(quantity)

    2- STEP PROBLEMS !
    -Grams(mass) >moles> Molecules, Atoms, F.U(amount)
    -Molecules,Atoms,F.U.(amount) >moles> Grams(mass)

    LABEL ALL WORK !

    We were assigned "The Mole WS #3", which allowed us to practice those TWO-STEP conversions
    7:33 pm
    rbanks1 rbanks1
  2. msg 3-17-10 moles message posted 3-17-10 moles Good job. Helpful link.
    3-17-10 moles
    Good job. Helpful link.
    3:55 am
    MrSwitzer MrSwitzer
  3. msg =The Mole and Mass= message posted =The Mole and Mass= Nice job. Good link.
    =The Mole and Mass=
    Nice job. Good link.
    3:53 am
    MrSwitzer MrSwitzer

Monday, March 21

  1. msg 3-17-10 moles message posted 3-17-10 moles 4.6 moles of C/1 atom of C * 6.02 * 10^23 atoms of c/ 1 mole of C= 27.692 …
    3-17-10 moles
    4.6 moles of C/1 atom of C * 6.02 * 10^23 atoms of c/ 1 mole of C= 27.692 * 10^23 or 2.7692 * 10^24
    3:58 pm
    JustinPace JustinPace

Saturday, March 19

  1. msg =The Mole and Mass= message posted =The Mole and Mass= In class we learned more about the Mole. In order to find the molar mass (mass of one mole), loo…
    =The Mole and Mass=
    In class we learned more about the Mole.

    In order to find the molar mass (mass of one mole), look on the Periodic Table

    Examples:
    Mg = 24.305g
    Cl = 35.453g

    When setting up an equation
    Atoms = 6.02 x 10^23
    Moles = 1
    Grams = Look on Periodic Table

    Examples:
    1 mole(Fe) = 6.02 x 10^23 ATOMS
    1 mole(Fe) = _55.845_ _GRAMS_

    http://www.youtube.com/watch?v=AsqEkF7hcII
    4:27 pm
    JAlbert3 JAlbert3

Thursday, March 17

  1. msg 3-17-10 moles message posted 3-17-10 moles Today in class we learned about "moles". A mole is equal to a number. the numer it is equ…
    3-17-10 moles
    Today in class we learned about "moles". A mole is equal to a number. the numer it is equal to is 6.02x10 to the 23 power. The mole is also a quantity. The mole of a different substance has a different mass.

    Example: 1 mole of C atoms has a mass of12.01

    Also some chemists use grams in the labs to show relationships between moles and grams.

    Sample problem
    4.6 moles of C= __ atoms of C

    http://www.youtube.com/watch?v=laDFEs-uxCY
    7:24 pm
    cwalker111 cwalker111
  2. user_add cwalker111 cwalker111 joined hillcrestchemistry2nd
    6:38 pm
    cwalker111 cwalker111

Wednesday, March 16

  1. msg Monday 3-14-2011 message posted Monday 3-14-2011 Very nice link. Dushon, add a question.
    Monday 3-14-2011
    Very nice link. Dushon, add a question.
    3:42 am
    MrSwitzer MrSwitzer
  2. msg 3-14-2011 message posted 3-14-2011 Nice job Markus. That link could be confusing since it discusses a physics conversion dealing with…
    3-14-2011
    Nice job Markus. That link could be confusing since it discusses a physics conversion dealing with speed. This link is closer to what we discussed in class. http://www.youtube.com/watch?v=IbEVKsJ99B8
    3:39 am
    MrSwitzer MrSwitzer

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