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3.5: Quiz 5

  • Page ID
    408611
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    1. Consider the molecule \(\mathrm{OBr}^{-}\).

    a. Fill in the MO diagram for the molecule using arrow notation. Label each atomic orbital side with the correct atom. (2 pts)

    Diagram showing molecular orbital diagrams for p and s molecular orbitals, featuring sigma and pi bonds.

    b. What is the bond order? (1 pt)

     

    2. Allene is a compound with formula \(\mathrm{C}_3 \mathrm{H}_4\) with the following Lewis dot structure:

    Structural formula of 1,3-butadiene, featuring alternating double bonds between carbon atoms.

    a. Give the hybridization for all the carbons in the allene. (1 pt)

    b. Label the individual bonds as sigma or pi bonds. (1 pt)

    c. List the intermolecular interactions that could happen between only an allene and an allyl alcohol molecule. Allyl has the following structure: (1 pt)

    Chemical structure of a molecule with two carbon atoms and a hydroxyl (OH) group attached.

    d. Rank the following in order of ascending boiling point: pure allene, a mixture of allene and allyl alcohol, and pure allyl alcohol. (1 pt)

     

    3. Given the visible spectrum below, answer the following questions.

    Table displaying the visible spectrum in nanometers, with colors ranging from violet (400 nm) to red (700 nm).

    a. If you shine a violet light onto a red small LED, how much heat energy will a promoted electron in the red small LED dissipate? (2 pts)

    b. Rank the amount of heat energy dissipated in the mystery LED, a red LED, and a blue LED if you were to shine a violet light onto them. (Hint: use your GB to help LEaD you to the answer ) (1 pt)


    This page titled 3.5: Quiz 5 is shared under a CC BY-NC-SA 4.0 license and was authored, remixed, and/or curated by Donald Sadoway (MIT OpenCourseWare) via source content that was edited to the style and standards of the LibreTexts platform.