Concept explainers
Give Lewis dot structures and sketch the shapes for the following:
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Inorganic Chemistry
- Predict the molecular structure (including bond angles) for each of the following. (See Exercises 25 and 26.) a. ICl5 b. XeC14 c. SeCl6arrow_forwardIdentify the molecules with a dipole moment: (a) SF4 (b) CF4 (c) Cl2CCBr2 (d) CH3Cl (e) H2COarrow_forwardThe molecule XF3 has a dipole moment. Is X boron or phosphorus?arrow_forward
- Which of the following statements is/are true? Correct the false statements. a. The molecules SeS3. SeS2, PCl5, TeCl4, ICl3, and XeCl2 all exhibit at least one bond angle which is approximately 120. b. The bond angle in SO2 should be similar to the bond angle in CS2 or SCI2. c. Of the compounds CF4, KrF4, and SeF4, only SeF4 exhibits an overall dipole moment (is polar). d. Central atoms in a molecule adopt a geometry of the bonded atoms and lone pairs about the central atom in order to maximize electron repulsions.arrow_forwardFrom the electron-pair repulsion model, predict the geometry of the following molecules: a TeF6 b ClF5 c SeF4 d SbF5arrow_forwardThe molecule XCl2 has a dipole moment. Is X beryllium or sulfur?arrow_forward
- The antibiotic thiarubin-A was discovered by studying the feeding habits of wild chimpanzees in Tanzania. The structure for thiarubin-A is a. Complete the Lewis structure, showing all lone pairs of electrons. b. Indicate the hybrid orbitals used by the carbon and sulfur atoms in thiarubin-A. c. How many and bonds are present in this molecule?arrow_forwardWhen two amino acids react with each other, they form a linkage called an amide group, or a peptide link. (If more linkage. are added, a protein or polypeptide is formed.) (a) What are the hybridizations of the C and N atoms in the peptide linkage? (b) Is the structure illustrated the only resonance structure possible for the peptide linkage? If another resonance structure is possible. compare it with the o ne shown. Decide which is the more important structure. (c) The computer-generated structure shown here, which contains a peptide linkage, shows that this linkage is flat. This is an important feature of proteins. Speculate on reasons that the CONH linkage is planar. What are the sites of positive and negative charge in this dipeptide?arrow_forwardA molecular compound is composed of 58.8% Xe, 7.2%. O, and 34.0%. F, by mass. If the molecular weight is 223 amu, what is the molecular formula? What is the Lewis formula? Predict the molecular geometry using the VSEPR model.arrow_forward
- Which of the following statements is(are) true? Correct the false statements. a.The molecules SeS3, SeS2, PCl5, TeCl4, ICl3, and XeCl2 all exhibit at least one bond angle, which is approximately 120. b.The bond angle in SO2 should be similar to the bond angle in CS2 or SCl2. c.Of the compounds CF4, KrF4, and SeF4, only SeF4 exhibits an overall dipole moment (is polar). d.Central atoms in a molecule adopt a geometry of the bonded atoms and lone pairs about the central atom in order to maximize electron repulsions.arrow_forwardFor each of the following molecules, write the Lewis structure(s), predict the molecular structure (including bond angles), give the expected hybrid orbitals of the central atom, and predict the overall polarity. a. CF4 b. NF3 c. OF2 d. BF3 e. BeH2 f. TeF4 g. AsF5 h. KrF2 i. KrF4 j. SeF6 k. IF5 l. IF3arrow_forwardThere are several molecular structures based on the trigonal bipyramid geometry (see Table 8.9). Three such structures are Which of the compounds in Exercises 91 and 92 have these molecular structures? PF5, SF4, ClF3 and Br3 SF6, ClF5, and XeF4arrow_forward
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