Short answer 8 12 points compare and contrast

  • No School
  • AA 1
  • 6

This preview shows page 2 - 5 out of 6 pages.

Short Answer 8. ( 12 points ) Compare and contrast “electron affinity” and “electronegativity” with respect to: (a) Definitions Page 2 of 6
Image of page 2

Subscribe to view the full document.

Chemistry 1320 Fall 2018 Personal Performance Assessment #2 (b) Units (c) Periodic trends 9. ( 8 points ) Provide the name in (a) and the formula in (b) for the compounds given. (a) chlorine trifluoride _________________________ (b) Nb 2 O 5 ________________________ (hint: Nb is element #41) 10. ( 6 points ) The cation [H—C—N—Xe—F] + is entirely linear (all 180º angles; a very unusual geometry for 5 atoms). Draw a Lewis Structure (with all lone pairs shown) consistent with that observed geometry. 11. ( 14 points ) In the lab, we tested the conductivity of both pure (glacial) acetic acid, and a dilute solution of acetic acid (vinegar). In the boxes below draw the Lewis structure and 3D sketch of acetic acid, CH 3 COOH. Note: there is NO O―O bond. Page 3 of 6 Three-dimensional sketch Lewis Structure
Image of page 3
Chemistry 1320 Fall 2018 Personal Performance Assessment #2 In the 3D sketch, be sure the geometry around the three central atoms is clear!! 11. ( 12 points ) Using Lewis structures, formal charges, and words, show why the carbonate ion, CO 3 2 - does not have the skeletal structure C―O―O―O, but rather has C as the central atom. C―O―O―O C as central atom 12. ( 12 points ) The table shows the first ionization energies for several atoms in the first three columns of the periodic table. (a) Explain the decreasing ionization energies from Be to Mg to Ca.
Image of page 4

Subscribe to view the full document.

Image of page 5

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern

Ask Expert Tutors You can ask 0 bonus questions You can ask 0 questions (0 expire soon) You can ask 0 questions (will expire )
Answers in as fast as 15 minutes