Please explain why the pink in questions four and five are correct and why the grey cirlced are incorrect l LTE7:05Which of the following has the smallest O-X-O angle?NO(b) CIO,Cod. POc.Which compound should have the smallest overall dipole moment?a. PF6 BF,c. PCI,BrFA beaker containing two moles of ice at 0.0 °C is placed in a room having an ambienttemperature of 22.0 °C. Calculate the amount of thermal energy, in kJ, that would needto be absorbed in order to convert the ice into water and then warm the water to theambient room temperature.(AHien (H:Ou)- +6.01 kl/mol; C, (H:Op) - 4.184 J/g"C)7.7 kJ12.2 kJ15.3 kJ36.0 kJ3,329 kJ4.The boiling point of HF is higher than that of HCI because HF hasFewer electronsLarger dispersion interactionsHydrogen bondingSmaller dipole-dipole interactionsLess ionic character5. Which of the following can become hypervalent in a Lewis structure?CarbonSulfurBoron) HeliumНypium

Hydrogen bonding forms between a hydrogen atom and more electronegative atom like fluorine(F),…

The boiling point of HF is higher than that of HCI because HF has Fewer electrons Larger dispersion interactions C. Hydrogen bonding Smaller dipole-dipole interactions Less ionic character c. Which of the following can become hypervalent in a Lewis structure? Carbon Sulfur Boron d. a. Helium C. Нypium

The boiling point of HF is higher than that of HCI because HF has Fewer electrons Larger dispersion interactions C. Hydrogen bonding Smaller dipole-dipole interactions Less ionic character c. Which of the following can become hypervalent in a Lewis structure? Carbon Sulfur Boron d. a. Helium C. Нypium

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter10: Liquids And Solids

Section: Chapter Questions

Problem 146CP: Rationalize the differences in physical properties in terms of intermolecular forces for the...

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Hi, please choose which of the two substances has the property listed on the left.
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11. Based on application of the VSEPR theory, which molecule is trigonal bipyramidal? А. ВF, B. ASF. C. SF4 D. XEOF. E. SÞC1, Use the diagram below to answer the following question # 12-15: B 1 atm 0.5 stm A 50 150 250 350 T, "C+ 12. Melting occurs along the: А. АC ine B. CB line C. CD line D. All of the choices are possible. 13.The temperature and pressure at which all three phases can coexist in equilibrium is: B. 1.0 atm and 140°c D. 0.45 atm and 130°C. A. 0.25 atm and 110°C C. 1.25 atm and 300°C 14.The nomal boiling point of this substance is approximately: A.25'C В. 140 "с C. 300 "C D. 350'C 15. What phases can be present at 200°C and 0.75 atm pressure? A.Only the vapor phase C. Only the solid phase B. Only the liquid phase D. Both solid & vapor phases
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13:57 O Vol) Question 8: How many of the atoms in the structure shown in Figure 8 has sp hybridisation? [The answer is a whole number.] Figure 8 CH Question 9: Predict the relative boiling points of the substances in Figure 9 and rank these boiling points from the lowest to the highest. [The sign approximately equal.] * ~means O D
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7
A: Н20 1) Lewis Structure: 2) Electron pair geometry: Molecular geometry:. 3) Dipole moment? 4) Hydrogen bonds? 5) Intermolecular forces: B: CH3COOCH2CH3 1) Lewis Structure: 2) Electron pair geometry: Molecular geometry: 3) Dipole moment? 4) Hydrogen bonds? 5) Intermolecular forces: 44
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5. Consider the H-bonds shown below. O---H- R- C-R 0–H-- FH---O' Assume that each H-bond is formed by two dipoles in a line, and approximate each dipole as a pair of point charges (q1, -q1, q2, -q2) separated by a distance r1=r2 with the centers of the dipoles at distance D apart. Then, the potential energy of the collinear arrangement of two dipoles is U=2µ1 H2/(4te,D³). Assuming that each H-bond has an energy of 1OKJ/mol, and that the charges q1 and q2 are equivalent, use the equation for the potential energy of a collinear arrangement of two dipoles to estimate the moment of the dipoles (µ1 = µ2) involved. Now, assuming that the charge separation distance in each dipole is 1 angstrom, estimate the magnitude of the partial charges responsible for the H-bond (report your answer in units of elementary charge, not coulombs).
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