3) For C₂ molecule: a) b) Construct a MO diagram. State the HOMO and LUMO. Calculate the bond order.

2) a) Consider the following molecule . Given what you have learned about hybridization theory, draw an image or images explaining the bonding situation in this molecule. I want you to draw out all of the orbitals, hybrid orbitals and how they overlap to form the bonds in the molecule. Indicate the % s or p character in the given atomic and hybrid orbitals. Which C-C bond or bonds are the longest? In a paragraph or so explain the image or images you just drew. b) Lastly, consider the molecule below. Indicate the Molecular formula, the molar mass, label the hybridization of each atom except for hydrogen, indicate any chiral centers with a *, which bond or bonds are the shortest, identify by name of each functional group with an arrow pointing to the group.

a) Nitric oxide (NO) is a molecule that produced naturally in our body and recognized to be a vital biological messenger in regulating the blood pressure and long-term memory in human. Answer the following questions based on the NO molecule. i) Draw a completely labelled molecular orbital energy level diagram. i) Identify and draw the shape of the lowest unoccupied molecular orbital (LUMO) and the highest occupied molecular orbital (HOMO). i) Write the full electronic configuration.

please don't provide hand writtin solution....

1. a) Sketch the Lewis structure and name the molecular VSEPR shape for CCl4 b) What is the hybridization for the C atoms in C2H2? Show your work. (Start with a Lewis structure.  This molecule has a skeleton of HCCH.) c) Sketch an s orbital.  (This is meant to be a simple question.  Don't sweat it!) d) Sketch a p orbital of your choice. Indicate the phase and the cartesian directions (x, y, z axes).

Label the following molecular orbitals as σ or π orbitals and briefly explain. Be sure indicate the subscript (g or u) and superscript (with or without *), but you do not need to specify the number before σ or π.

Using the dropdown menu, answer the following questions based on the given pi molecular orbitals. Assume the compounds are simple hydrocarbons. 888 888888 1 2 3 888 8888 888 4 Is 1 an incorrect MO depiction? choose your answer... Are either 3 or 5 antibonding MOs? choose your answer... Are the energies of 3 and 5 equal? choose your answer... Which MO has the fewest nodes? choose your answer...

5. (2 points) Consider ethylene, and acetylene ethylene acetylene (a) Draw three-dimensional diagrams of each molecule. Label the hybridization of each carbon, and show all sigma and pi bonds. (b) Which of these molecules has the shortest bond length? Which has the longest? In each of these molecules, where is the largest electron density located in space?

a) Consider a molecule of acetone cyanohydrin, shown below. What is the hybridization and molecular geometry at CA, CB, and O?  (b) For Carbon B (CB) and nitrogen (N), draw orbital energy diagrams showing the orbitals involved in bonding after hybridization. Be sure to fill the orbitals appropriately with valence electrons. c) In your diagrams in part (b), which orbitals are involved in sigma and pi bonding?            Orbitals Involved in Sigma Bonding                                       Orbitals Involved in Pi Bonding  2p sp sp2 sp3 2p sp sp2 sp3 (d) In a sample containing many molecules of acetone cyanohydrin (and no other substances), what type(s) of intermolecular forces could be present? Choose all that apply. Covalent Bonds            Hydrogen Bonds              Dipole-Dipole Forces              London Dispersion Forces

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