Recent content by tigerwoods99

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    The Nature of Gases, Heating Gases

    so it adds potential energy as well?
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    The Nature of Gases, Heating Gases

    Homework Statement What happens when gas is heated? Is all of the absorbed energy converted to kinetic energy? or is some of the absorbed energy converted into potential and some into kinetic energy? Homework Equations The Attempt at a Solution My teacher said the correct answer...
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    Avogardro's number / Representative particles

    Homework Statement Which of the following is a representative particle? a. cation Incorrect b. all of these particles Correct c. anion Incorrect d. atom Incorrect Homework Equations The Attempt at a Solution I am trying to understand why all of these are...
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    Writing Formulas for Ionic Compounds

    Ah ok, so then I guess A would be correct, correct?
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    Writing Formulas for Ionic Compounds

    Homework Statement Of the following, which correctly shows an ion pair and the ionic compound the two ions form? Homework Equations a. Fe3+, O3+ = Fe2O3 b. Cr3+, I- = CrI c. Cu2+, O2- = Cu2O2 d. Sn4+, N3- = Sn4N3 The Attempt at a Solution a. Fe3+, O3+ = Fe2O3...
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    Hybridization of Carbon in a Triple Bond: Explained

    Homework Statement What type of hybridization occurs in the orbitals of a carbon atom participating in a triple bond with another carbon atom? The Attempt at a Solution I honestly thought it would be sp3 but it turns out to be sp. Can someone explain this to me? Thanks!
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    Calculating Approximate Atomic Mass of Lead | Isotopes of Pb and Percent by Mass

    Ok so here is what I have right now: 82p, 122n --> 204 mass number (.0137) % 82p, 124n --> 206 mass number (.2625) % 82p, 125n --> 207 mass number (.2082) % 82p, 126n --> 208 mass number (.5155) % (204*.0137) + (206*.2625) + (207*.2082) + (208*.5155) = approximate atomic mass of lead...
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    Calculating Approximate Atomic Mass of Lead | Isotopes of Pb and Percent by Mass

    Yea that makes sense. How did you get the 203.9... I got it being something around 207.
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    Calculating Approximate Atomic Mass of Lead | Isotopes of Pb and Percent by Mass

    Alright, but I am still not sure where I am headed with this. I got the right number correct? It's just a matter of explaining why this number is only an approximate. Thanks everyone
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    Calculating Approximate Atomic Mass of Lead | Isotopes of Pb and Percent by Mass

    Ok so this was my starting data 82p, 122n 1.37% 82p, 124n 26.25% 82p, 125n 20.82% 82p, 126n 51.55% So the reason this calculation is an approximate is because the atomic mass did not take into consideration the electrons, is that correct? Or why is it an approximate, even with the...
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    Calculating Approximate Atomic Mass of Lead | Isotopes of Pb and Percent by Mass

    Ok, So i got that 207.1912 is the approximate atomic mass of lead. Now i just need to figure out why this number is only an approximate.
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    Calculating Approximate Atomic Mass of Lead | Isotopes of Pb and Percent by Mass

    is it 204*0.0137? = 2.7948 ?? I'm not really sure what you asking me to do.
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    Calculating Approximate Atomic Mass of Lead | Isotopes of Pb and Percent by Mass

    I'm not sure... it says 204. http://www.wolframalpha.com/entities/isotopes/lead_204/2y/re/x8/
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