Which statement best describes the bond length(s) in the ozone molecule (shown)? The bond length of O-O is 148 pm and O=O is 121 pm. Ö= .0 0. O O There are two bond lengths that oscillate between 148 pm and 121 pm The bond lengths are equally 269 pm One bond is 148 pm and the other is 121 pm O The bond lengths are equally 127 pm.

Which statement best describes the bond length(s) in the ozone molecule (shown)? The bond length of O-O is 148 pm and O=O is 121 pm. Ö= .0 0. O O There are two bond lengths that oscillate between 148 pm and 121 pm The bond lengths are equally 269 pm One bond is 148 pm and the other is 121 pm O The bond lengths are equally 127 pm.

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter3: Bonding: General Concepts

Section: Chapter Questions

Problem 92E: Consider the following bond lengths: CO143pmC9O123 pmC:O109 pm In the Co32 ion, all three C8O bonds...

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Light of appropriate wavelength can break chemical bonds. Light having λ < 240 nm can dissociate gaseous O2. It requires light with λ < 819 nm to dissociate gaseous H2O2 to 2 OH. Assume that all of the photon energy is used solely for these dissociations. (a) Calculate the energy required to dissociate (i) O2 and (ii) H2O2. (b) Consider the results of part (a). How well do they correlate with the Lewis structures of O2 and H2O2? Explain your answer.
Consider the following bond lengths: CO143pmC9O123 pmC:O109 pm In the Co32 ion, all three C8O bonds have identical bond lengths of 136 pm. Why?
The work function (Φ) of a metal is the minimum energy needed to remove an electron from its surface. (a) Is it easier toremove an electron from a gaseous silver atom or from the sur-face of solid silver (Φ=7.59X10⁻¹⁹J; IE =731 kJ/mol)? (b) Explain the results in terms of the electron-sea model ofmetallic bonding
Draw Lewis structures for ozone and dioxygen. Using the data given below, qualitatively compare the bond enthalpies, bond orders, and bond lengths of these two compounds: O2 (g) --> 2O(g) ∆H = +498 kJ O(g) + O2(g) à O3(g) ∆H = -105 kJ
The molecule XZ2 is formed from the hypothetical elements Z and X. In that molecule both of the Z atoms are bonded to the X atom (and not to each other). The X-X distance in X2 is 0.136 nm and the Z-Z distance in the Z2 is 0.143 nm. What is the predicted bond length for the X-Z bond in the molecule XZ2?
Consider hypothetical elements X2 and Y2. Suppose the enthalpy of formation of the compound XY is – 84 kJ/mol, the bond energy for X2 is 105 kJ/mol, and the bond energy for Y2 is 58 kJ/mol. A)Estimate the XY bond energy, Ed, in units of kJ/mol. B)If the dissociation of a X-Y molecule were accomplished by the absorption of a single photon whose energy was exactly the quantity required, what would be its wavelength in nm? C)Would a green-light photon (λgreen=550 nm) be able to break the above X-Y bond? Explain.
The O—O bonds in ozone can be described as “one and a half bonds.” Does thissuggest that the bond lengths in ozone are longer or shorter than those in the O2molecule?
Without consulting tables of data, predict which species has the greater bond length, H2 or He+2.
Consider the element Work (Wr) with an atomic number of 33 and an atomic mass of 81.03 g/mol. The following information was collected for this element Molecule/ Ion Names Wr-2 Workide WrO3-2 Workate WrO2-2 Workite WrO-3 hydroworkite a. Draw the Lewis structure of the molecule Workous acid and determine its electron geometry and molecular geometry. b.What is the mass % of work in Calcium hydroworkite.
Phosgene, a substance used in poisonous gas warfare during World War I, is so named because it was first prepared by the action of sunlight on a mixture of carbon monoxide and chlorine gases. Its name comes from the Greek words phos (light) and genes (born of). Phosgene has the following elemental composition: 12.14% C, 16.17% O, and 71.69% Cl by mass. Its molar mass is 98.9 g/mol. (d) Using average bond enthalpies, estimate H for the formation of gaseous phosgene from CO(g) and Cl2(g).
A compound is being tested for use as a rocket propellant. The analysis showed that this compound contained 18.54% F, 34.61% Cl, and 46.85% O.a. Suppose the molecular formula is the same as the empirical formula, describing the Lewis structure for this moleculeb. Use the VSEPR theory to predict the structure of this moleculec. List the three anions of the elements according to their increment in the radius of the ion. Ar F = 19, Cl = 35,5, O= 16
Ortho-Dichlorobenzene, C6H4Cl2, is obtained when two ofthe adjacent hydrogen atoms in benzene are replaced withCl atoms. A skeleton of the molecule is shown here. (a) Completea Lewis structure for the molecule using bonds andelectron pairs as needed. (b) Are there any resonance structuresfor the molecule? If so, sketch them. (c) Are the resonancestructures in (a) and (b) equivalent to one another asthey are in benzene?

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