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- If the unknown compound has the formula XY4, and X is from group 16 and Y is from group 17, determine whether the compound will be polar. Briefly justify your response.Explain a change in the dipole moment of the molecule and a change in the polarizability of the molecule. Differentiate them.Chloral, Cl₃C-CH=O, reacts with water to form the seda-tive and hypnotic agent chloral hydrate, Cl₃C-CH(OH)₂. DrawLewis structures for these substances, and describe the change inmolecular shape, if any, that occurs around each of the carbonatoms during the reaction
- Sketch the three-dimensional structure of the Hydrogen carbonate ion. Clearly indicate the electronic geometry, the shape of the species, and expected bond angles around both central atoms.What is the molecular geometry of the PF4^+ (15P & 9F). Explain your answer brieflyDescribe the bonding in the hydrogen cyanide molecule, HCN. Assume that N is sp-hybridized.
- Gamma hydroxybutyric acid, GHB, infamous as a date rape drug, is used illicitly because of its effects on the nervous system. The condensed molecular formula for GHB is HO(CH2)3COOH. (a) Write the Lewis structure for GHB. (b) Identify the hybridization of the carbon atom in the CH2 groups and of the terminal carbon. (c) Is hydrogen bonding possible in GHB? If so, write Lewis structures to illustrate the hydrogen bonding. (d) Which carbon atoms are involved in sigma bonds? In pi bonds? (e) Which oxygen atom is involved in sigma bonds? In pi bonds?Based on the discussion so far, identify a characteristic that is common to all situations where electron-region geometry and molecular geometry are the same for a molecule or a polyatomic ion.2. It has been reported that 3-electron bonds may be possible. These bonds would be similar to "normal" two-electron bonds, except that three electrons would be required for each bond. I was curious as to what might happen to molecular geometries if ALL bonds involved three electrons and ALL lone pairs were actually lone triplets. Under this system, and using the VSETR (Valence Shell Electron Triplet Repulsion) Model, predict the ideal molecular geometries of the following molecules. (NOTES: The number of valence electrons for each atom remains the same; only worry about VSE Triplets around the central atom; electron triplets would still want to position themselves around the atom just like doublets.) a. FH;2 b. ХеН c. FH2 d. H30
