Concept explainers
(a)
Interpretation:
Ammonia molecule has to be illustrated through ball-stick model, space-filling and two-dimensional pictures.
Concept Introduction:
Molecular geometry is the shape of a molecule predicted by considering only bond pair of electrons.
Bond angle is the angle between two bonds of a molecule and it is determined based on the electron-domain geometry.
Generally, a solid wedge bond indicates it is above the plane of the ring and a broken wedge bond indicates it is below the plane.
(b)
Interpretation:
Water molecule has to be illustrated through ball-stick model, space-filling and two-dimensional pictures.
Concept Introduction:
Refer to (a).
(c)
Interpretation:
Carbon-dioxide molecule has to be illustrated through ball-stick model, space-filling and two-dimensional pictures.
Concept Introduction:
Refer to (a).
Want to see the full answer?
Check out a sample textbook solutionChapter 7 Solutions
Chemistry: The Molecular Science
- How many nonbonding pairs (or lone-pairs) of electrons are found on the central atom in the Lewis structure of XeF2 molecule? (A) 0 (B) 1 (C) 2 (D) 3arrow_forwardFor each of the following, draw the Lewis structure, predict the ONO bond angle, and give the hybridization of the nitrogen. (a) NO2(b) NO2−(c) NO2+arrow_forwardThe structural formula for ethane is (a) What is the molecular formula for ethane?(b) What is its empirical formula?(c) Can we infer from this drawing that the H—C—H bond angles are 90 degrees?arrow_forward
- Specify the local electron geometries about the atoms labelled a-d. Unshared electron pairs affect local geometry and are included in the structural formula. For each atom enter one of the following: tetrahedral, square planar, trigonal planar, trigonal pyramidal, or linear. (a)[ (b) (c) (d) H H C b a Si-C H XHH H Н H Harrow_forwardDraw the Lewis structures and predict the shape of each compound or ion:(a) CO2(b) NO2−(c) SO3(d) SO32−arrow_forwardWhich of the following is a resonance structure of compound X? N (A) OH NH (B) X NH O NH (C) N (D)arrow_forward
- (a) Methane (CH4) and the perchlorate ion (ClO4- ) are bothdescribed as tetrahedral. What does this indicate about theirbond angles? (b) The NH3 molecule is trigonal pyramidal, while BF3 is trigonal planar. Which of these molecules is flat?arrow_forwardThe organic molecules shown here are derivatives of benzene in which six-membered rings are “fused” at the edges of the hexagons. (a) Determine the empirical formula of benzene and of these three compounds. (b) Suppose you are given a sample of one of the compounds. Could combustion analysis be used to determine unambiguously which of the three it is? (c) Naphthalene, the active ingredient in mothballs, is a white solid. Write a balanced equation for the combustion of naphthalene to CO2(g) and H2O(g). (d) Using the Lewis structure for naphthalene and the average bond enthalpies in Table 8.4, estimate the heat of combustion of naphthalene in kJ/mol. (e) Would you expect naphthalene, anthracene, and tetracene to have multiple resonance structures? If so, draw the additional resonance structures for naphthalene. (f) Benzene, naphthalene, and anthracene are colorless, but tetracene is orange. What does this imply…arrow_forward2(a) Provide the Lewis structures for both CH3OH and C2H3Cl. 2(b) What is the largest bond angle among all the bond angles in CH3OH and C2H3Cl? Listthe three atoms making this largest bond angle, and estimate the value of the angle.2(c) What intermolecular forces are present(i) between CH3OH molecules?(ii) between C2H3Cl molecules?arrow_forward
- The atomic number of sulfur is 16. Sulfur combines withhydrogen by covalent bonding to form a compound, hydrogensulfide. Based on the number of valence electrons in a sulfuratom, predict the molecular formula of the compound.(A) HS(B) HS2(C) H2S(D) H4Sarrow_forward1. Draw the Lewis structures for each of the following ions or molecules. For each, give (i) the molecular shape, (ii) the electron pair geometry at the central atom, and (iii) the hybridization of the central atom. (a) POF3 (b) XeO₂F3+ (c) BrCl₂ (d) N3 (the central atom is N; two other N's are bonded to it) (e) PF3arrow_forwardDraw Lewis structures for the following compounds.(a) ammonia, NH3 (b) water, H2O(c) hydronium ion, H3O+ (d) propane, C3H8(e) dimethylamine, CH3NHCH3 (f) diethyl ether, CH3CH2OCH2CH3(g) 1-chloropropane, CH3CH2CH2Cl (h) propane-2-ol, CH3CH(OH)CH3(i) borane, BH3 (j) boron trifluoride, BF3Explain what is unusual about the bonding in the compounds in parts (i) and (j)arrow_forward
- Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning