General Chemistry: Atoms First
2nd Edition
ISBN: 9780321809261
Author: John E. McMurry, Robert C. Fay
Publisher: Prentice Hall
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Textbook Question
Chapter 4.9, Problem 4.19P
Draw as many resonance structures as possible for each of the following molecules or ions, giving all atoms (except H) octets:
- (a) SO2
- (b) CO32−
- (c) HCO2−
- (d) BF3
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Calculate the enthalpy change for the following reactions using the bond enthalpy given below. (Bond enthalpy/kJ : H−H = 436, C−H = 413, C=O = 799, O=O = 495, O−H = 463)
(a) H2(g) + 1⁄2O2(g) → H2O(g)
(b) CH4(g) + 2O2(g) → CO2(g) + 2H2O(l)
Consider the formate ion, HCO2", which is the anion
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(b) Are resonance structures needed to describe the
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Cyanogen (CN)2 is known as pseodohalogen because it has some properties like halogens. It is composed of two CN’s joined together.(i) Draw the Lewis structure for all the possible combination for (CN)2.(ii) Calculate the formal charge and determine which one of the structures that you have drawn is most stable.(iii) For the stable structure, determine the geometry around the two central atoms.(iv) For the stable structure, draw the dipole arrows for the bonds.(v) Base on the stable structure, determine the polarity of molecule and state your reason.
Chapter 4 Solutions
General Chemistry: Atoms First
Ch. 4.2 - Prob. 4.1PCh. 4.2 - Prob. 4.2PCh. 4.2 - Prob. 4.3CPCh. 4.4 - Use the electronegativity values in Figure 4.4 to...Ch. 4.4 - Order the following compounds according to the...Ch. 4.4 - An electrostatic potential map of water is shown...Ch. 4.5 - Prob. 4.7PCh. 4.5 - Write formulas for compounds with the following...Ch. 4.5 - Prob. 4.9CPCh. 4.6 - Draw electron-dot structures for the following...
Ch. 4.6 - Draw an electron-dot structure for the hydronium...Ch. 4.7 - Draw electron-dot structures for the following...Ch. 4.7 - There are two molecules with the formula C2H6O....Ch. 4.7 - The following structure is a representation of...Ch. 4.8 - Carbon monoxide, CO, is a deadly gas produced by...Ch. 4.8 - Draw an electron-dot structure for each of the...Ch. 4.8 - Prob. 4.17PCh. 4.9 - Prob. 4.18PCh. 4.9 - Draw as many resonance structures as possible for...Ch. 4.9 - The following structure shows the connections...Ch. 4.10 - Calculate the formal charge on each atom in the...Ch. 4.10 - Calculate the formal charge on each atom in the...Ch. 4.10 - What is a radical, and why are they so reactive?Ch. 4.10 - Prob. 4.24PCh. 4.10 - Draw an electron-dot structure for the ethyl...Ch. 4 - Two electrostatic potential maps are shown, one of...Ch. 4 - Prob. 4.27CPCh. 4 - Prob. 4.28CPCh. 4 - Prob. 4.29CPCh. 4 - Sinapaldehyde, a compound present in the toasted...Ch. 4 - Vitamin C (ascorbic acid) has the following...Ch. 4 - What general trends in electronegativity occur in...Ch. 4 - Prob. 4.33SPCh. 4 - Prob. 4.34SPCh. 4 - Prob. 4.35SPCh. 4 - Prob. 4.36SPCh. 4 - Prob. 4.37SPCh. 4 - Prob. 4.38SPCh. 4 - Show the direction of polarity for each of the...Ch. 4 - Prob. 4.40SPCh. 4 - Prob. 4.41SPCh. 4 - Prob. 4.42SPCh. 4 - Prob. 4.43SPCh. 4 - Prob. 4.44SPCh. 4 - Prob. 4.45SPCh. 4 - Prob. 4.46SPCh. 4 - Prob. 4.47SPCh. 4 - Prob. 4.48SPCh. 4 - Prob. 4.49SPCh. 4 - Prob. 4.50SPCh. 4 - Which of the following substances contains an atom...Ch. 4 - Draw electron-dot structures for the following...Ch. 4 - Prob. 4.53SPCh. 4 - Oxalic acid, H2C2O4, is a mildly poisonous...Ch. 4 - Draw an electron-dot structure for carbon...Ch. 4 - Prob. 4.56SPCh. 4 - Prob. 4.57SPCh. 4 - Prob. 4.58SPCh. 4 - Prob. 4.59SPCh. 4 - Methylphenidate (C14H19NO2), marketed as Ritalin,...Ch. 4 - Pregabalin (C8H17NO2), marketed as Lyrica, is an...Ch. 4 - Draw as many resonance structures as you can that...Ch. 4 - Prob. 4.63SPCh. 4 - Which of the following pairs of structures...Ch. 4 - Which of the following pairs of structures...Ch. 4 - Draw an electron-dot structure for carbon...Ch. 4 - Prob. 4.67SPCh. 4 - Prob. 4.68SPCh. 4 - Prob. 4.69SPCh. 4 - Prob. 4.70SPCh. 4 - Prob. 4.71SPCh. 4 - Prob. 4.72SPCh. 4 - Prob. 4.73SPCh. 4 - Prob. 4.74CHPCh. 4 - Thiofulminic acid, , is a highly reactive...Ch. 4 - Draw two resonance structures for methyl...Ch. 4 - Prob. 4.78CHPCh. 4 - Prob. 4.79CHPCh. 4 - Prob. 4.80CHPCh. 4 - Prob. 4.81CHPCh. 4 - Prob. 4.82CHPCh. 4 - Prob. 4.83CHPCh. 4 - Prob. 4.84CHPCh. 4 - Prob. 4.85CHPCh. 4 - Sulfur reacts with chlorine to give a product that...Ch. 4 - Sulfur reacts with ammonia to give a product A...Ch. 4 - Prob. 4.88MPCh. 4 - Prob. 4.89MP
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- Using the bond energy data from your text (or the internet), determine (show calculations for) the approximate enthalpy change , ∆H, for each of the following reactions: (a) Cl2 (g) + 3F2 (g) ⟶ 2ClF3 (g) (b) H2C=CH2 (g) + H2 (g) ⟶ H3CCH3 (g)arrow_forwardCalculate the formal charge of each element in the following compounds and ions:(a) F2CO(b) NO–(c) BF4−(d) SnCl3−(e) H2CCH2(f) ClF3(g) SeF6(h) PO43−arrow_forwardDraw all possible resonance structures for each of these compounds. Determine the formal charge on each atom in each of the resonance structures:(a) O3(b) SO2(c) NO2 −(d) NO3−arrow_forward
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- Consider the following compounds: CaCl 2 , CaI 2 , and MgCl 2 . Answer the following questions based on expected periodic trends: (a) Which is expected to have t he shortest ionic bonds? (b) Which is expected to have the highest lattice energy? (c) Which is expected to have the lowest melting point?arrow_forwardDetermine the formal charge of each element in the following:(a) H3O+(b) SO42−(c) NH3(d) O22−(e) H2O2arrow_forwardDraw Lewis structures for HFO4, HFO3, HC0O4, HC0O3, HCO2. (These molecules have the halogen atom as the central atom. All O atoms are attached to the halogen. The hydrogen atom is bonded to one of the O atoms.) Use formal charges to determine which molecule is least likely to occur in nature. (A) HFO4 (B) HC(O2 (C) HC!O3 (D) HFO3 (E) HC\O4 DO000arrow_forward
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