Concept explainers
Hydrogen azide,
Want to see the full answer?
Check out a sample textbook solutionChapter 10 Solutions
EBK GENERAL CHEMISTRY
- Best Lewis Formula and Molecular Geometry A student writes the Lewis electron-dot formula for the carbonate anion, CO32, as a Does this Lewis formula obey the octet rule? Explain. What are the formal charges on the atoms? Try describing the bonding for this formula in valence bond terms. Do you have any difficulty doing this? b Does this Lewis formula give a reasonable description of the electron structure, or is there a better one? If there is a better Lewis formula, write it down and explain why it is better. c The same student writes the following resonance description for CO2: Is there something wrong with this description? (What would you predict as the geometries of these formulas?) d Is one or the other formula a better description? Could a value for the dipole moment help you decide? e Can you write a Lewis formula that gives an even better description of CO2? Explain your answer.arrow_forwardFormamide, HC(O)NH2, is prepared at high pressures from carbon monoxide and ammonia, and serves as an industrial solvent (the parentheses around the O indicate that it is bonded only to the carbon atom and that the carbon atom is also bonded to the H and the N atoms). Two resonance forms (one with formal charges) can be written for formamide. Write both resonance structures, and predict the bond angles about the carbon and nitrogen atoms for each resonance form. Are they the same? Describe how the experimental determination of the HNH bond angle could be used to indicate which resonance form is more important.arrow_forwardPhosphorus pentachloride, a key industrial compound with annual world production of about 2107kg, is used to make other compounds. It reacts with sulfur dioxide to produce phos-phorus oxychloride (POCl₃) and thionyl chloride (SOCl₂).Draw a Lewis structure, and name the molecular shape of each product.arrow_forward
- Selenium tetrafluoride, SeF₄, is a colorless liquid that is used as a fluorinating reagent in organic synthesis. Based on your Lewis structure for SeF₄, how many electron domains are on the central atom?arrow_forwardDraw the Lewis structure of HClO₃ (with minimized formal charges) and then choose the appropriate pair of molecular geometries of the two central atoms. Your answer choice is independent of the orientation of your drawn structure.arrow_forwardWhich of the following statements concerning the N₂O molecule is/are true? The atoms are bonded in the order NNO. You may select more than one, or none, of the responses. The central N atom is sp² hybridized. The structure of N2O is best represented as a hybrid of three equivalent resonance structures, There are two σ and two bonds. The N2O molecule is linear. The central N atom has a formal charge of +1. The N-N-O angle is 60°, The two N atoms have the same oxidation state.arrow_forward
- Consider a hypothetical molecule with the formula X4Y2Z. The atoms X, Y, and Z have electronegativities of 2.5, 3.0, and 3.5, respectively. The molecule adopts a tetrahedral geometry with X atoms at the corners, Y atoms in the middle of the edges, and Z atoms at the center of the molecule. Explain the polarity of this molecule and the factors contributing to it.arrow_forwardOxygen gas reacts with sulfur tetrafluoride to slowly form sulfur tetrafluoride monoxide gas. Balance the equation for the formation of sulfur tetrafluoride monoxide. chemical reaction: 0,(g) + SF (g) → OSF,(g) Draw the Lewis structure of OSF, where the formal charge is zero on each atom. The sulfur atom is the central atom in the structure, and it is bonded to the oxygen atom and each of the four fluorine atoms. Select Draw Rings More Erase Use the bond energies in the table to estimate the enthalpy of reaction for the formation of sulfur tetrafluoride monoxide. étv Aaarrow_forward10. Each ball-and-stick model below shows the electron-pair and molecular geometry of a generic molecule. Explain what is wrong with each molecular geometry and provide the correct molecular geometry based on the number of lone and bonding pairs around the central atom. (a) (b) (c) 11. Draw the Lewis structure for acetamide (CH3CONH2) and determine the geometry about each interior atom. Experiments show that the geometry about the N atom in acetamide is nearly planar. Draw a resonance structure that can account for the planar geometry about the N atom.arrow_forward
- In terms of the bonds present, explain why acetic acid, CH3CO2H, contains two distinct types of carbon-oxygen bonds, whereas the acetate ion, formed by loss of a hydrogen ion from acetic acid, only contains one type of carbon- oxygen bond. The skeleton structures of these species are shown: но H Н—с—с-о—н H-C-C- H. H.arrow_forwardDraw all the equivalent resonance structures for BrO 3¯ on a piece of paper and then fill in the blanks. Draw the structure in such a way that the formal charge on the central atom is zero. Molecular geometry: Number of equivalent resonance structures: Bond order of Br-O bond(s): (fractions rounded to 2 decimal places, e.g. 1/2 will be 0.50 , 4/3 will be 1.33 and 5/3 will be 1.67) Formal charge on terminal atoms participating in resonancearrow_forwardHere's a wild molecule: disulfur dinitride (S2N2). It can be isolated as a crystalline solid, but it is unstable (explosive). Therefore, it must to be handled carefully in an inert atmosphere free of oxygen. X-ray diffraction measurements of the crystalline solid indicate the atoms are arranged in a square with the sulfur atoms on opposite corners and the nitrogen atoms on the remaining opposite corners. Consider the bonding in this unusual molecule. a. Determine the best Lewis structure representation for S2N2. Include the formal charges on each atom in the structure. b. Determine the valence bonding theory predictions for hybridization at each atom in S2N2. The bond angles in S2N2 have been measured by X-ray diffraction and are all approximately 90°. Does valence bond theory do a good job of predicting this observation? Consider the geometry and bonding of S2N2 computed using molecular orbital theory. The results are shown below. Identify the orbital character of the HOMO(-2),…arrow_forward
- Chemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage LearningGeneral Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage LearningChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning