Problem 1RQ: What are intermolecular forces? How do they differ from intramolecular forces? What are... Problem 2RQ: Define the following terms and describe how each depends on the strength of the intermolecular... Problem 3RQ: Compare and contrast solids, liquids, and gases. Problem 4RQ Problem 5RQ: What is a lattice? What is a unit cell? Describe a simple cubic unit cell. How many net atoms are... Problem 6RQ: What is closest packing? What is the difference between hexagonal closest packing and cubic closest... Problem 8RQ: Describe, in general, the structures of ionic solids. Compare and contrast the structure of sodium... Problem 9RQ Problem 10RQ Problem 11RQ: Compare and contrast the phase diagrams of water and carbon dioxide. Why doesn t CO2 have a normal... Problem 1ALQ: It is possible to balance a paper clip on the surface of water in a beaker. lf you add a bit of soap... Problem 2ALQ Problem 3ALQ Problem 4ALQ Problem 5ALQ Problem 6ALQ Problem 7ALQ Problem 8ALQ Problem 9ALQ Problem 10ALQ Problem 11ALQ Problem 12Q Problem 13Q: In the diagram below, which lines represent the hydrogen bonding? a. the dotted lines between the... Problem 14Q Problem 15Q: Atoms are assumed to touch in closest packed structures, yet every closest packed unit cell contains... Problem 16Q: Define critical temperature and critical pressure. In terms of the kinetic molecular theory, why is... Problem 17Q Problem 18Q Problem 19Q Problem 20Q Problem 21Q Problem 22Q: A common response to hearing that the temperature in New Mexico is 105F is, Its not that bad; its a... Problem 23Q Problem 24Q Problem 25Q: When wet laundry is hung on a clothesline on a cold winter day, it will freeze but eventually dry.... Problem 26Q: Cake mixes and other packaged foods that require cooking often contain special directions for use at... Problem 27Q: You have three covalent compounds with three very different boiling points. All of the compounds... Problem 28Q Problem 29Q: Compare and contrast the structures of the following solids. a. CO2(s) versus H2O(s) b. NaCl(s)... Problem 30Q Problem 31Q: How could you tell experimentally if TiO2 is an ionic solid or a network solid? Problem 32Q: A common prank on college campuses is to switch the salt and sugar on dining hall tables, which is... Problem 33Q: A plot of In (Pvap) versus 1/T (K) is linear with a negative slope. Why is this the case? Problem 34Q Problem 35E: Identify the most important types of interparticle forces present in the solids of each of the... Problem 36E Problem 37E: Predict which substance in each of the following pairs would have the greater intermolecular forces.... Problem 38E: Consider the compounds CI2, HCI. F2, NaF, and HF. Which compound has a boiling point closest to that... Problem 39E Problem 40E: Consider the following electrostatic potential diagrams: Rank the compounds from lowest to highest... Problem 41E: In each of the following groups of substances, pick the one that has the given property. Justify... Problem 42E Problem 43E: The shape of the meniscus of water in a glass tube is different from that of mercury in a glass... Problem 44E Problem 45E Problem 46E Problem 47E: X rays from a copper X-ray tube ( = 154 pm) were diffracted at an angle of 14.22 degrees by a... Problem 48E: The second-order diffraction (n = 2) for a gold crystal is at an angle of22.20 for X rays of 154 pm.... Problem 49E: A topaz crystal has an interplanar spacing (d) of 1.36 (1 = 1 1010 m). Calculate the wavelength... Problem 50E: X rays of wavelength 2.63 were used to analyze a crystal. The angle of first-order diffraction (n =... Problem 51E Problem 52E Problem 53E Problem 54E: Iridium (Ir) has a face-centered cubic unit cell with an edge length of 383.3 pm. Calculate the... Problem 55E: You are given a small bar of an unknown metal X. You find the density of the metal to be 10.5 g/cm3.... Problem 56E: A metallic solid with atoms in a face-centered cubic unit cell with an edge length of 392 pm has a... Problem 57E: Titanium metal has a body-centered cubic unit cell. The density of titanium is 4.50 g/cm3. Calculate... Problem 58E: Barium has a body-centered cubic structure. If the atomic radius of barium is 222 pm, calculate the... Problem 59E: The radius of gold is 144 pm, and the density is 19.32 g/cm3. Does elemental gold have a... Problem 60E: The radius of tungsten is 137 pm and the density is 19.3 g/cm3. Does elemental tungsten have a... Problem 61E: What fraction of the total volume of a cubic closest packed structure is occupied by atoms? (Hint:... Problem 62E: Iron has a density of 7.86 g/cm3 and crystallizes in a body-centered cubic lattice. Show that only... Problem 63E Problem 64E Problem 65E: Selenium is a semiconductor used in photocopying machines. What type of semiconductor would be... Problem 66E Problem 67E Problem 68E Problem 69E: The structures of some common crystalline substances are shown below. Show that the net composition... Problem 70E: The unit cell for nickel arsenide is shown below. What is the formula of this compound? Problem 71E: Cobalt fluoride crystallizes in a closest packed array of fluoride ions with the cobalt ions filling... Problem 72E: The compounds Na2O, CdS, and ZrI4. all can be described as cubic closest packed anions with the... Problem 73E: What is the formula for the compound that crystallizes with a cubic closest packed array of sulfur... Problem 74E Problem 75E: A certain metal fluoride crystallizes in such a way that the fluoride ions occupy simple cubic... Problem 76E: The structure of manganese fluoride can be described as a simple cubic array of manganese ions with... Problem 77E: The unit cell of MgO is shown below l Does MgO have a structure like that of NaCl or ZnS? If the... Problem 78E: In solid KCl the smallest distance between the centers of a. potassium ion and a chloride ion is 314... Problem 79E: The CsCl structure is a simple cubic array of chloride ions with a cesium ion at the center of each... Problem 80E: MnO has either the NaCI type structure or the CsCI type structure (see Exercise 69). The edge length... Problem 81E Problem 82E: What type of solid will each of the following substances form? a. diamond b. PH3 c. H2 d. Mg e. KCl... Problem 83E: The memory metal, nitinol, is an alloy of nickel and titanium. It is called a memory metal because... Problem 84E: Superalloys have been made of nickel and aluminum. The alloy owes its strength to the formation of... Problem 85E: Perovskite is a mineral containing calcium, titanium, and oxygen. Two different representations of... Problem 86E: A mineral crystallizes in a cubic closest packed array of oxygen ions with aluminum ions in some of... Problem 87E: Materials containing the elements Y, Ba, Cu, and O that are superconductors (electrical resistance... Problem 88E: The structures of another class of ceramic, high-temperature superconductors are shown in figures... Problem 89E: Plot the following data and determine Hvap for magnesium and lithium. In which metal is the bonding... Problem 90E: From the following data for liquid nitric acid, deter mine its heat of vaporization and normal... Problem 91E Problem 92E Problem 93E Problem 94E: Diethyl ether (CH3CH2OCH2CH3) was one of the first chemicals used as an anesthetic. At 34.6C,... Problem 95E: A substance, X, has the following properties: Specific Heat Capacities Hvap 20.kj/mol C(s) 3.0j/gC... Problem 96E: Use the heating-cooling curve below to answer the following questions. a. What is the freezing point... Problem 97E: The molar heat of fusion of sodium metal is 2.60 kJ/mol, whereas its heat of vaporization is 97.0... Problem 98E Problem 99E: What quantity of energy does it take to convert 0.500 kg ice at 20.C to steam at 250.C? Specific... Problem 100E: Consider a 75.0-g sample of H2O(g) at 125C. What phase or phases are present when 215 kJ of energy... Problem 101E: An ice cube tray contains enough water at 22.0C to make 18 ice cubes that each has a mass of 30.0 g.... Problem 102E: A 0.250-g chunk of sodium metal is cautiously dropped into a mixture of 50.0 g water and 50.0 g ice,... Problem 103E Problem 104E Problem 105E Problem 106E Problem 107E Problem 108E: Consider the following data for xenon: Triple point: 121C, 280 torr Normal melting point: 112C... Problem 109AE: Some of the physical properties of H2O and D2O are as follows: Property H2O D2O Density at 20C... Problem 110AE: Rationalize the following boiling points: Problem 111AE Problem 112AE: Consider the following enthalpy changes:... Problem 113AE Problem 114AE: Boron nitride (BN) exists in two forms. The first is a slippery solid formed from the reaction of... Problem 115AE Problem 116AE: Argon has a cubic closest packed structure as a solid. Assuming that argon has a radius of 190. pm,... Problem 117AE Problem 118AE: A 20.0-g sample of ice at 10.0C is mixed with 100.0 g water at 80.0C. Calculate the final... Problem 119AE: In regions with dry climates, evaporative coolers are used to cool air. A typical electric air... Problem 120AE: The critical point of NH3 is 132C and 111 atm, and the critical point of N2 is 147c and 34 atm.... Problem 121CWP: Which of the following compound(s) exhibit only London dispersion intermolecular forces? Which... Problem 122CWP: Which of the following statements about intermolecular forces is( are) true? a. London dispersion... Problem 123CWP Problem 124CWP: Aluminum has an atomic radius of 143 pm and forms a solid with a cubic closest packed structure.... Problem 125CWP: Pyrolusite is a mineral containing manganese ions and oxide ions. Its structure can best be... Problem 126CWP: The structure of the compound K2O is best described as a cubic closest packed array of ox.ide ions... Problem 127CWP Problem 128CWP: Some ice cubes at 0c with a total mass of 403 g are placed in a microwave oven and subjected to 750.... Problem 129CWP: The enthalpy of vaporization for acetone is 32.0 kJ/mol. The normal boiling point for acetone is... Problem 130CWP Problem 131CP: When I mole of benzene is vaporized at a constant pressure of 1.00 atm and at its boiling point of... Problem 132CP Problem 133CP: Using the heats of fusion and vaporization for water given in Exercise 99, calculate the change in... Problem 134CP Problem 135CP: Consider two different organic compounds, each with the formula C2H6O. One of these compounds is a... Problem 136CP Problem 137CP Problem 138CP Problem 139CP Problem 140CP Problem 141CP: Mn crystallizes in the same type of cubic unit cell as Cu. Assuming that the radius of Mn is 5.6%... Problem 142CP Problem 143CP: Some water is placed in a sealed glass container connected to a vacuum pump (a device used to pump... Problem 144CP: The molar enthalpy of vaporization of water at 373 K and 1.00 atm is 40.7 kJ/mol. What fraction of... Problem 145CP Problem 146CP: Rubidium chloride has the sodium chloride structure at normal pressures but assumes the cesium... Problem 147IP Problem 148IP: A metal burns in air at 600c under high pressure to form an oxide with formula MO2. This compound is... Problem 149IP Problem 150MP: General Zod has sold Lex Luthor what Zod claims to be a new copper-colored form of kryptonite, the... format_list_bulleted
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