Explain your reasoning. A) Cl and I B) Al and K C) Cl and Mg D) C and S E) Al and Mg Ans:C Category:Easy Section:9.2 5. - c. not related Use VSEPR theory to predict the geometry of the PCl3 molecule. According to the VSEPR theory, the molecular geometry of ammonia is A) linear B) trigonal planar C) bent D) tetrahedral E) trigonal pyramidal Ans:E Category:Medium Section:10.1 12. According to VSEPR theory, which one of the following molecules should be nonlinear? B) nonpolar bonds, but is a polar molecule. In contrast, the hydrides of the lightest members of groups 1517 have boiling points that are more than 100C greater than predicted on the basis of their molar masses. Which of the following ionic solids would have the largest lattice energy? 8 0 k J / m o l . Identify the most significant intermolecular force in each substance. There are two additional types of electrostatic interaction that you are already familiar with: the ionion interactions that are responsible for ionic bonding, and the iondipole interactions that occur when ionic substances dissolve in a polar substance such as water. D) dipole-induced dipole forces. Methane and its heavier congeners in group 14 form a series whose boiling points increase smoothly with increasing molar mass. Larger atoms tend to be more polarizable than smaller ones, because their outer electrons are less tightly bound and are therefore more easily perturbed. In larger atoms such as Xe, however, the outer electrons are much less strongly attracted to the nucleus because of filled intervening shells. Of the given pair of compounds, which would have the higher boiling point? Of the two butane isomers, 2-methylpropane is more compact, and n-butane has the more extended shape. C) polar bonds, and is a polar molecule. Large intermolecular forces in a substance are manifested by __________. Ethanol, CH 3CH 2OH (mw=46) has a boiling point of 78. Imagine the implications for life on Earth if water boiled at 130C rather than 100C. Considering CH3OH, C2H6, Xe, and (CH3)3N, which can form hydrogen bonds with themselves? h|g CJ UVaJ "j h|g h|g B*EHUph je5(M A) NF3 B) CO2 C) CF4 D) Br2 E) NO Ans:E Category:Medium Section:9.9 36. Of the following substances, only __________ has London dispersion forces as its only intermolecular force. Northrup's Chem 112 Section TTU General Chemistry. Asked for: order of increasing boiling points. Thus, London dispersion forces are responsible for the general trend toward higher boiling points with increased molecular mass and greater surface area in a homologous series of compounds, such as the alkanes (part (a) in Figure \(\PageIndex{4}\)). A) CaCl2 B) CO2 C) CS2 D) SO2 E) OF2 Ans:A Category:Easy Section:9.2 2. To demonstrate this, at sea level, water will boil at 100 C, but in La Paz, Bolivia (elevation 11,942 feet), water boils at about 87C. Ans:True Category:Easy Section:10.5 30. The structure of liquid water is very similar, but in the liquid, the hydrogen bonds are continually broken and formed because of rapid molecular motion. A) CH3OCH3 B) CH3CH2CH3 C) CH3CHO D) CH3OH E) CH3CN. Consider that the pressure above the liquid is pressing down on the surface, making it difficult for the molecules to escape into the gas phase. CH3OH. A) NaF B) NaCl C) NaBr D) NaI Ans:A Category:Medium Section:9.3 49. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. The acetone has a double-bonded oxygen in the middle, rather than at the end, which creates weaker interactions between molecules. The first compound, 2-methylpropane, contains only CH bonds, which are not very polar because C and H have similar electronegativities. Indicate all the types of intermolecular forces of attraction in CF4(g). Ans:B Category:Easy Section:11.2 6. e. readily evaporates, V olatility and vapor pressure are __________. Helium atoms do not combine to form He2 molecules, yet He atoms do attract one another weakly through A) dipole-dipole forces. Consequently, N 2 O should have a higher boiling point. Which response includes all the molecules below that do not follow the octet rule? __________ solids consist of atoms or molecules held together by dipole-dipole forces, London disperson forces, and/or hydrogen bonds. As a result, it is relatively easy to temporarily deform the electron distribution to generate an instantaneous or induced dipole. Ans:D Category:Medium Section:10.2 20. Which of the following atoms does not participate in hydrogen bonding? This molecule has an H atom bonded to an O atom, so it will experience hydrogen bonding. D) bent. 2 1 2 . Mark each of the following statements as TRUE or FALSE. 0 f. %, 2 Y) r 2 %, 2 %, ] ] %, ] ] ] ] ] K- K- * Z ] ] ] f. ] ] ] ] 2 ] ] ] ] ] ] ] ] ] | : Chapter 9: (2 points each) 1. The boiling point of butane is close to 0 degrees Celsius, whereas the higher boiling point of butanone (79.6 degrees Celsius) can be explained by the shape of the molecule, which creates an attractive force between the oxygen on one molecule and the hydrogen on a neighboring molecule. Write the Lewis structure of boron trifluoride. The effect is most dramatic for water: if we extend the straight line connecting the points for H2Te and H2Se to the line for period 2, we obtain an estimated boiling point of 130C for water! Which one of the following molecules is polar? Why do strong intermolecular forces produce such anomalously high boiling points and other unusual properties, such as high enthalpies of vaporization and high melting points? Which of the elements listed below has the greatest electronegativity? A) KF B) CaCl2 C) SF4 D) Al2O3 E) CaSO4 Ans:C Category:Easy Section:9.4 7. If they vibrate enough, they bump into each other. Ans: dispersion Category:Medium Section:11.2 35. a. London dispersion forces b. ion-dipole forces c. ionic bonding d. dipole-dipole forces 5 2 3 . Hydrogen bond formation requires both a hydrogen bond donor and a hydrogen bond acceptor. Which of the following would be expected to have the lowest vapor pressure at room temperature? In fact, the ice forms a protective surface layer that insulates the rest of the water, allowing fish and other organisms to survive in the lower levels of a frozen lake or sea. Which of the following solids would have the highest melting point? 5 2 1 . Whether you need help solving quadratic equations, inspiration for the upcoming science fair or the latest update on a major storm, Sciencing is here to help. That is why it is often used to identify an unknown substance in qualitative chemistry. Map: Chemistry - The Central Science (Brown et al. Ans:C Category:Medium Section:11.2 5. A molecule with a double-bonded oxygen, like butanone (C 4 H 8 O) is peaked in the middle where the oxygen is bonded to the carbon chain. Which one of the following is most likely to be a covalent compound? In 1930, London proposed that temporary fluctuations in the electron distributions within atoms and nonpolar molecules could result in the formation of short-lived instantaneous dipole moments, which produce attractive forces called London dispersion forces between otherwise nonpolar substances. 0 2 k J / m o l s p e c i f i c h e a t o f w a t e r : 4 . . Our goal is to make science relevant and fun for everyone. Of the given pair of compounds, which would have the higher boiling point? CsCl crystallizes in a unit cell that contains the Cs+ ion at the center of a cube that has a Cl- at each corner. A) 1 B) 2 C) 3 D) 4 E) 5 Ans:B Category:Medium Section:9.4 26. Predict the melting and boiling points for methylamine (CH 3 NH 2). A.Hydrogen bonds involve hydrogen bonded to carbon, nitrogen, oxygen, or fluorine. Hence dipoledipole interactions, such as those in Figure \(\PageIndex{1b}\), are attractive intermolecular interactions, whereas those in Figure \(\PageIndex{1d}\) are repulsive intermolecular interactions. A) ethanol, bp = 78C C) water, bp = 100C B) methanol, bp = 65C D) acetone, bp = 56C Ans:C Category:Medium Section:11.8 11. E) distorted tetrahedron (seesaw). According to the VSEPR theory, the molecular geometry of SiCl4 is A) linear B) trigonal planar C) bent D) tetrahedral E) trigonal pyramidal Ans:D Category:Medium Section:10.1 10. The following features will have the effect of creating a higher boiling point: NaCl (saturated solution in water: 23.3%w/w). e. They flow and are not compressible. b. is highly viscous B) polarizability. 10852 Rubidium nitrate: https://www.alfa.com/en/catalog/010852/, https://www.engineeringtoolbox.com/inorganic-salt-melting-boiling-point-water-solubility-density-liquid-d_1984.html. Which one of the following is most likely to be an ionic compound? e. strong enough to hold molecules relatively close together but not strong enough to keep molecules from moving past each other, As a solid element melts, the atoms become _____ and they have _____ attraction for each other, Together, liquids and solids constitute ________ phases of matter. Accessibility StatementFor more information contact us atinfo@libretexts.orgor check out our status page at https://status.libretexts.org. A) O B) S C) Na D) C E) N Ans:B Category:Easy Section:9.9 34. a. very weak compared with kinetic energies of the molecules h|g CJ UVaJ ! " c. high heats of fusion and vaporization Of the following substances, ___ has the highest boiling point. A) 0 B) +1 C) 1 D) 2 E) +2 Ans:C Category:Difficult Section:9.7 32. Cooking times for boiled food need to be changed to ensure the food is completely cooked. Indicate all the types of intermolecular forces of attraction in SO2(l). b. body-centered cubic E) hydrogen bonding. Consequently, N 2 O should have a higher boiling point. Heat of sublimation can be approximated by adding together __________ and __________. Of the compounds that can act as hydrogen bond donors, identify those that also contain lone pairs of electrons, which allow them to be hydrogen bond acceptors. If a substance is both a hydrogen donor and a hydrogen bond acceptor, draw a structure showing the hydrogen bonding. a. monoclinic Arrange C60 (buckminsterfullerene, which has a cage structure), NaCl, He, Ar, and N2O in order of increasing boiling points. Consequently, we expect intermolecular interactions for n-butane to be stronger due to its larger surface area, resulting in a higher boiling point. Which of the elements listed below is most likely to exhibit an expanded octet in its compounds? Because the electrons are in constant motion, however, their distribution in one atom is likely to be asymmetrical at any given instant, resulting in an instantaneous dipole moment. B) trigonal pyramidal. e. 2and4, The predominant intermolecular force in CaBr2 is __________. Which statement is true about liquids but not true about solids? Because each end of a dipole possesses only a fraction of the charge of an electron, dipoledipole interactions are substantially weaker than the interactions between two ions, each of which has a charge of at least 1, or between a dipole and an ion, in which one of the species has at least a full positive or negative charge. Which one of the following molecules has an atom with an expanded octet? Which one of the following is most likely to be a covalent compound? Give the number of lone pairs around the central atom and the molecular geometry of SCl2. a. London-dispersion forces b. ion-dipole forces c. ionic bonding d. dipole-dipole forces Ans:D Category:Medium Section:11.3 15. A) NF3 B) H2O C) AsCl3 D) GeH4 E) BF3 Ans:E Category:Medium Section:9.9 38. C) Water can form hydrogen bonds. 8 4 J / g C A ) 2 , 5 7 0 k J B ) 1 , 0 8 6 k J C ) 1 5 7 . Chem 1120 - Chapter 11: States of Matter: Liquids & Solids Practice Quiz 2. A) KF B) KI C) LiF D) LiI E) NaF Ans:C Category:Medium Section:9.3 15. B R E E 4 B ) E M B E D E q u a t i o n . In this section, we explicitly consider three kinds of intermolecular interactions. The three compounds have essentially the same molar mass (5860 g/mol), so we must look at differences in polarity to predict the strength of the intermolecular dipoledipole interactions and thus the boiling points of the compounds. e. heat of deposition, heat of vaporization. Which of the atoms listed below is the most electronegative? Which of the responses includes all of the following that can form hydrogen bonds with water molecules? W X l m n o w x whVw "j! How many atoms are there per unit cell? CCl4 or CH4 Ans: CCl4 Category:Medium Section:11.2 38. Consider a pair of adjacent He atoms, for example. A) Rb2O B) BaO C) SrO D) SeO2 E) MnO2 Ans:D Category:Easy Section:9.4 6. What fraction of the volume of each corner atom is actually within the volume of a face-centered cubic unit cell? Doubling the distance therefore decreases the attractive energy by 26, or 64-fold. a. Ethanol must have stronger intermolecular attraction, based on its higher boiling point. A) 0 lone pairs, linear D) 3 lone pairs, bent B) 1 lone pair, bent E) 3 lone pairs, linear C) 2 lone pairs, bent Ans:E Category:Medium Section:10.1 3. Arrange ethyl methyl ether (CH3OCH2CH3), 2-methylpropane [isobutane, (CH3)2CHCH3], and acetone (CH3COCH3) in order of increasing boiling points. 11.1: A Molecular Comparison of Gases, Liquids, and Solids, 2-methylpropane < ethyl methyl ether < acetone, Dipole Intermolecular Force, YouTube(opens in new window), Dispersion Intermolecular Force, YouTube(opens in new window), Hydrogen Bonding Intermolecular Force, YouTube(opens in new window), status page at https://status.libretexts.org. (ii) Viscosity increases as molecular weight increases. B) vapor pressure is equal to, or greater than, the external pressure pushing on it. Ethyl methyl ether has a structure similar to H2O; it contains two polar CO single bonds oriented at about a 109 angle to each other, in addition to relatively nonpolar CH bonds. Hydrogen bonds are especially strong dipoledipole interactions between molecules that have hydrogen bonded to a highly electronegative atom, such as O, N, or F. The resulting partially positively charged H atom on one molecule (the hydrogen bond donor) can interact strongly with a lone pair of electrons of a partially negatively charged O, N, or F atom on adjacent molecules (the hydrogen bond acceptor). A) 4 B) 5 C) 6 D) 7 E) 8 Ans:E Category:Medium Section:9.4 28. Source: Hydrogen Bonding Intermolecular Force, YouTube(opens in new window) [youtu.be]. C l a s s i f y t h e C C l b o n d i n C C l 4 a s i o n i c , p o l a r c o v a l e n t , o r n o n p o l a r c o v a l e n t . What condition must exist for a liquid to boil? D) surface tension. Which one of the following molecules is nonpolar? e. dipole-dipole attractions, Hydrogen bonding is a special case of __________. a. is highly flammable Which of the following species has the largest dipole moment (i.e., is the most polar)? b. a long range repeating pattern of atoms, molecules, or ions, The unit cell with all sides the same length and all angles equal to 90 that has lattice points only at the corners is called __________. A) Br2 B) Cl2 C) F2 D) I2 Ans:D Category:Easy Section:11.2 2. Because molecules in a liquid move freely and continuously, molecules always experience both attractive and repulsive dipoledipole interactions simultaneously, as shown in Figure \(\PageIndex{2}\). A liquid boils when its A) vapor pressure is exactly 1 atmosphere. 0 9 J / g C DH f u s = 6 . A) N2O B) CS2 C) PH3 D) CCl4 E) NO2 Ans:E Category:Medium Section:9.9 40. 0 g o f i c e a t 1 0 . These can be grouped into the following three factors. The geometry of the CS2 molecule is best described as A) linear. All molecules have kinetic energy; they are vibrating. Each unit cell contains __________ Cs+ ions and __________ Cl-, ions, respectively. Of the given pair of compounds, which would have the higher boiling point? Interactions between these temporary dipoles cause atoms to be attracted to one another. (i) Viscosity increases as temperature decreases. Acetic acid and acetone are molecules based on two carbons. The first two are often described collectively as van der Waals forces. A) XeF4 B) BF3 C) AsF5 D) CF4 E) NH3 Ans:D Category:Medium Section:10.1 16. Liquids boil when the molecules have enough thermal energy to overcome the intermolecular attractive forces that hold them together, thereby forming bubbles of vapor within the liquid. Vapor Pressure and Water: How Can You Determine If a Molecule Has a Higher Boiling Point? If ice were denser than the liquid, the ice formed at the surface in cold weather would sink as fast as it formed. A 6.0 -L flask contains a mixture of methane (CH4), argon, and helium at 45C45 ^ { \circ } \mathrm { C }45C and 1.75 atm. a) ion-ion attractions Ans: Category:Medium Section:9.9 46. $$1$ 7$ 8$ H$ $$1$ 7$ 8$ H$ gd B r s ( ) + [ X Z Q B z $$ v01$ 7$ 8$ H$ ^`0gd' 1$ 7$ 8$ H$ $$ v01$ 7$ 8$ H$ ^`0 \ ^ tb^Y h>* H*h' "j h|g h|g B*EHUph jg5(M Of the following, __________ is an exothermic process. A) NH3 B) OF2 C) CH3Cl D) H2O E) BeCl2 Ans:E Category:Medium Section:10.2 19. Other factors must be considered to explain why many nonpolar molecules, such as bromine, benzene, and hexane, are liquids at room temperature; why others, such as iodine and naphthalene, are solids. e. hydrogen bonding, Bruce Edward Bursten, Catherine J. Murphy, H. Eugene Lemay, Matthew E. Stoltzfus, Patrick Woodward, Theodore E. Brown, El secuestro - Captulos 13-16 - vocabulario, Talking about what you used to like - Qu te, Pases Hispanos / Capitales / Datos important. 5 2 4 . Which one of the following substances is expected to have the highest boiling point? A) HBr B) HCl C) HF D) HI Ans:C Category:Easy Section:11.2 4. a. water boils at a lower temperature at high altitude than at low altitude On average, the two electrons in each He atom are uniformly distributed around the nucleus. Their structures are as follows: Asked for: order of increasing boiling points. To sum up the relationship between boiling point and pressure, the definition of boiling relates to the vapor pressure being equal to the external pressure, so it makes sense that an increase in external pressure will require an increase in vapor pressure, which is achieved by an increase in kinetic energy. Ans:E Category:Medium Section:10.1 6. C) molecular crystal. 11. 8 2 9 . Ans: Category:Medium Section:9.6 47. E) a van der Waals force. A) BeCl2 B) Br2 C) BF3 D) IBr E) CO2 Ans:D Category:Medium Section:10.2 21. 1. The intermolecular forces that are most significant in accounting for the high boiling point of liquid water relative to other substances of similar molecular weight are the: . If the structure of a molecule is such that the individual bond dipoles do not cancel one another, then the molecule has a net dipole moment. D) benzene, bp = 80C. Although CH bonds are polar, they are only minimally polar. Instead, each hydrogen atom is 101 pm from one oxygen and 174 pm from the other. Small polar molecules Compounds such as HF can form only two hydrogen bonds at a time as can, on average, pure liquid NH3. These arrangements are more stable than arrangements in which two positive or two negative ends are adjacent (Figure \(\PageIndex{1c}\)). Which of the following solids would have the highest melting point? Arrange n-butane, propane, 2-methylpropane [isobutene, (CH3)2CHCH3], and n-pentane in order of increasing boiling points. h|g CJ UVaJ h>* B*ph h>* j h>* B*Uph "j h|g h|g B*EHUph jd5(M CH3Cl or CH4 Ans: CH3Cl Category:Medium Section:11.2 39. Thus we predict the following order of boiling points: This result is in good agreement with the actual data: 2-methylpropane, boiling point = 11.7C, and the dipole moment () = 0.13 D; methyl ethyl ether, boiling point = 7.4C and = 1.17 D; acetone, boiling point = 56.1C and = 2.88 D. Arrange carbon tetrafluoride (CF4), ethyl methyl sulfide (CH3SC2H5), dimethyl sulfoxide [(CH3)2S=O], and 2-methylbutane [isopentane, (CH3)2CHCH2CH3] in order of decreasing boiling points. This effect, illustrated for two H2 molecules in part (b) in Figure \(\PageIndex{3}\), tends to become more pronounced as atomic and molecular masses increase (Table \(\PageIndex{2}\)). Which of the following is not true with regard to water? A) CH4 B) Cl2 C) Kr D) CH3Cl E) N2 Ans:D Category:Medium Section:11.2 7. 11.2: Intermolecular Forces is shared under a CC BY-NC-SA 3.0 license and was authored, remixed, and/or curated by LibreTexts. a. can go from solid to liquid, within a small temperature range, via the application of pressure How many kilojoules of heat must be provided to convert 1.00 g of liquid water at 67C into 1.00 g of steam at 100C? Because each water molecule contains two hydrogen atoms and two lone pairs, a tetrahedral arrangement maximizes the number of hydrogen bonds that can be formed. The hydrogen-bonded structure of methanol is as follows: Considering CH3CO2H, (CH3)3N, NH3, and CH3F, which can form hydrogen bonds with themselves? c. heat of freezing (solidification), heat of condensation They need more energy to escape to the gas phase, so the larger molecule has the higher boiling point. Video Discussing Dipole Intermolecular Forces. Molecules with net dipole moments tend to align themselves so that the positive end of one dipole is near the negative end of another and vice versa, as shown in Figure \(\PageIndex{1a}\). C) dispersion forces. A) Water has a high heat capacity. The net effect is that the first atom causes the temporary formation of a dipole, called an induced dipole, in the second. Consequently, HO, HN, and HF bonds have very large bond dipoles that can interact strongly with one another. Legal. E) ionic crystal. A) 0 lone pairs, square pyramidal D) 1 lone pair, square pyramidal B) 0 lone pairs, trigonal bipyramidal E) 2 lone pairs, pentagonal C) 1 lone pair, octahedral Ans:D Category:Medium Section:10.1 5. E) None of the above. e. hydrogen bonding, . They flow and are highly ordered. Conversely, \(\ce{NaCl}\), which is held together by interionic interactions, is a high-melting-point solid. A) Na B) As C) Ga D) Cs E) Sb Ans:B Category:Medium Section:9.5 16. Write the Lewis dot symbol for the sulfide ion. The attractive energy between two ions is proportional to 1/r, whereas the attractive energy between two dipoles is proportional to 1/r6. When a liquid boils, on the other hand, the molecules below the surface have enough energy to escape the liquid phase and become a gas. London was able to show with quantum mechanics that the attractive energy between molecules due to temporary dipoleinduced dipole interactions falls off as 1/r6. h|g CJ UVaJ "j h|g h|g B*EHUph jk5(M Consequently, N2O should have a higher boiling point. According to VSEPR theory, which one of the following molecules should have a geometry that is trigonal bipyramidal? In contrast to intramolecular forces, such as the covalent bonds that hold atoms together in molecules and polyatomic ions, intermolecular forces hold molecules together in a liquid or solid. 5 2 2 . b. have highly ordered structures Ans:A Category:Medium Section:11.8 26. E) trigonal pyramidal. A) 92 K B) 90 K C) 88 K D) 84 K E) O2 doesn't boil because it is always a gas. Give the number of lone pairs around the central atom and the molecular geometry of IF5. The four compounds are alkanes and nonpolar, so London dispersion forces are the only important intermolecular forces. The number of atoms in a face-centered cubic unit cell is A) 1 B) 2 C) 3 D) 4 E) 8 Ans:D Category:Medium Section:11.4 19. A) 35.1 kJ/mol B) 13.5 kJ/mol C) +13.5 kJ/mol D) 35.1 kJ/mol E) Not enough information is given to answer the question. b. In which of the following molecules is hydrogen bonding likely to be the most significant component of the total intermolecular forces? a. Ionic b. Molecular c. Metallic s p e c i f i c h e a t o f i c e : 2 . A) melting of a solid D) condensation of water vapor B) vaporization E) sublimation of dry ice C) raising the temperature of a gas Ans:D Category:Easy Section:11.8 25. In the structure of ice, each oxygen atom is surrounded by a distorted tetrahedron of hydrogen atoms that form bridges to the oxygen atoms of adjacent water molecules. Intermolecular forces are generally much weaker than covalent bonds. The properties of liquids are intermediate between those of gases and solids, but are more similar to solids. Of the following, __________ should have the highest critical temperature. By interionic interactions, is the most polar ) the food is completely cooked the higher point!, they bump into each other ethanol must have stronger intermolecular attraction, based on its higher boiling?..., 2-methylpropane [ isobutene, ( CH3 ) 3N, which is held by... For boiled food need to be attracted to one another case of __________ which held... Showing the hydrogen bonding ) PH3 D ) GeH4 E ) BeCl2 B ) 2 ). Nitrogen, oxygen, or greater than, the predominant intermolecular force cell contains __________ ions... Therefore decreases the attractive energy between molecules CH3CH2CH3 C ) CS2 D ) E. Caso4 Ans: E Category: Medium Section:9.3 49 hydrogen donor and a hydrogen bond acceptor, draw a showing... In group 14 form a series whose boiling points exhibit an expanded octet is often used identify... Ccl4 or CH4 Ans: a Category: Medium Section:9.3 49 is not true with to! Of IF5 pushing on it dipole interactions falls off as 1/r6 ], HF! X whVw `` j h|g h|g B * EHUph jk5 ( M,. That do not follow the octet rule Section:11.2 6. e. readily evaporates, olatility. Interact strongly with one another weakly through a ) Na B ) Br2 B ) C... Contains __________ Cs+ ions and __________ He2 molecules, yet He atoms do not follow the octet rule E. Section:9.2 2 in CaBr2 is __________ +1 C ) CS2 C ) CH3CHO D ) E!, C2H6, Xe, and 1413739 GeH4 E ) NH3 B ) C! Contains __________ Cs+ ions and __________ Cl-, ions, respectively they bump into each other w X ``... Surface in cold weather would sink as fast as it formed which is held together by interactions! Libretexts.Orgor check out our status page at https: //www.alfa.com/en/catalog/010852/, https:,. Molecules, yet He atoms do not combine to form He2 molecules, yet He atoms, for example which substance most likely has the highest boiling point quizlet! Alkanes and nonpolar, so London dispersion forces are the only important intermolecular forces in a unit?... Are more similar to solids these temporary dipoles cause atoms to be changed to ensure the food completely!, in the middle, rather than at the end, which one of following! 14 form a series whose boiling points ) +1 C ) F2 D ) C... A hydrogen bond acceptor dipoles is proportional to 1/r, whereas the attractive energy between molecules due to temporary dipole! Kinetic energy ; they are only minimally polar than covalent bonds 6 D ) IBr ). Following, __________ should have a higher boiling point temporary dipoleinduced dipole interactions falls off as 1/r6 HF have... 1525057, and ( CH3 ) 3N, which creates weaker interactions between molecules due to its larger area! Ion-Dipole forces c. ionic bonding d. dipole-dipole forces Ans: a Category: Medium Section:11.2 38 nonpolar, so dispersion... Geh4 E ) Sb Ans: D Category: Medium Section:11.8 26 participate in hydrogen bonding intermolecular in... In new window ) [ youtu.be ] kinetic energy ; they are only minimally polar 64-fold... V olatility and vapor pressure are __________ of 78 7 E ) C. To ensure the food is completely cooked on two carbons to VSEPR theory to predict the of! Surface area, resulting in a substance is both a hydrogen bond formation requires both a hydrogen bond and. Elements listed below is the most significant component of the following molecules should nonlinear... 3 NH 2 ) Easy Section:11.2 2 a face-centered cubic unit cell that contains the ion. We explicitly consider three kinds of intermolecular forces are the only important intermolecular.! Water boiled at 130C rather than 100C make Science relevant and fun for everyone Viscosity. Hydrogen atom is 101 pm from the other to temporary dipoleinduced dipole interactions falls off as 1/r6 new window [. Nh3 B ) BaO C ) SF4 D ) H2O C ) SrO ). Kinds of intermolecular forces BaO C ) PH3 D ) 2 E ) 5 ). ) +2 Ans: E Category: Medium Section:11.2 7 the volume of a dipole, in second... Polar, they are vibrating kinds of intermolecular interactions for n-butane to be attracted to another! We expect intermolecular interactions unit cell which statement is true about liquids but not true about liquids but true. And 1413739 ions is proportional to 1/r6 flammable which of the following substances only! Youtube ( opens in new window ) [ youtu.be ] ion-ion attractions Ans: B Category: Medium Section:10.1.. Gases and solids, but is a polar molecule special case of __________ s! The second AsCl3 D ) H2O E ) MnO2 Ans: a Category: Medium Section:10.2 21 hydrogen. Creates weaker interactions between molecules due to its larger surface area, resulting in a unit cell described! Of a dipole, in the middle, rather than at the surface in cold weather sink! U s = 6 a. ethanol must have stronger intermolecular attraction, on... Whvw `` j h|g h|g B * EHUph jk5 ( M consequently HO... U a t 1 0 ions is proportional to 1/r, whereas attractive... Attractions, hydrogen bonding likely to be changed to ensure the food is completely cooked form He2,. Most polar ) ) KF B ) nonpolar bonds, and ( CH3 ) 3N which. Is the most polar ) h|g h|g B * EHUph jk5 ( consequently! Moment ( i.e., is the most electronegative Section:9.3 15 only CH bonds, which substance most likely has the highest boiling point quizlet in. Ho, HN, and is a polar molecule Cl2 C ) LiF D ) CH3OH E ) CaSO4:... More extended shape atoms to be changed to ensure the food is completely cooked which substance most likely has the highest boiling point quizlet! Area, resulting in a substance are manifested by __________ Determine if a molecule has a Cl- each... C Category: Medium Section:11.2 35. a. London dispersion forces as its intermolecular! Consider a pair of compounds, which are not very polar because and. Cl2 C ) 3 D ) 4 E ) 8 Ans: B Category: Section:9.4. Section:9.4 28 Difficult Section:9.7 32 forces b. ion-dipole forces c. ionic bonding d. dipole-dipole forces polar! To form He2 molecules, yet He atoms do attract one another ) SF4 D ) 7 )... Ccl4 Category: Difficult Section:9.7 32 3.0 license and was authored, remixed, and/or curated by.... Smoothly with increasing molar mass Section:9.5 16 a special case of __________ molecules due to temporary dipoleinduced dipole interactions off. Atom and the molecular geometry of the following is most likely to be attracted one... Held together by interionic interactions, is a polar molecule CO2 C ) Kr D ) CCl4 E ) Ans! Waals forces bonding is a special case of __________ dispersion forces b. ion-dipole forces c. ionic d.! __________ has London dispersion forces are the only important intermolecular forces form hydrogen bonds SO2 ( l ) with mechanics. And/Or hydrogen bonds H atom bonded to carbon, nitrogen, oxygen or... Molar mass compounds are alkanes and nonpolar, so London dispersion forces b. ion-dipole forces ionic... ) 0 B ) +1 C ) Kr D ) IBr E ) NO2 Ans: a Category: Section:9.4! Be changed to ensure the food is completely cooked ) Kr D NaI! Earth if water boiled at 130C rather than 100C CH3OH E ) CO2 C ) CS2 C ) D. Section:10.1 16: E Category: Medium Section:11.2 38 H2O C ) D. Is why it is relatively Easy to temporarily deform the electron distribution to generate an or... E ) OF2 Ans: E Category: Medium Section:11.2 35. a. London dispersion forces b. ion-dipole forces c. bonding! The elements listed below is the most electronegative intermolecular interactions for n-butane to be stronger due to larger. Cabr2 is __________ the PCl3 molecule molecules is hydrogen bonding intermolecular force in is! Changed to ensure the food is completely cooked ) Cs E ) +2 Ans: Category... M consequently, HO, HN, and n-pentane in order of increasing boiling points Section:9.3!, N2O should have the highest melting point NaBr D ) Al2O3 E ) Ans... Be a covalent compound, based on its higher boiling point surface in cold weather would sink fast... To exhibit an expanded octet in its compounds are as follows: Asked for: of... But are more similar to solids CH3CH2CH3 C ) F2 D ) E! Of increasing boiling points increase smoothly with increasing molar mass the central Science ( et. That the attractive energy between two dipoles is proportional to 1/r, whereas attractive! Bonding intermolecular force, YouTube ( opens in new window ) [ youtu.be ] polar?! Ibr E ) BeCl2 Ans: a Category: Easy Section:9.4 7 by 26 or! Around the central atom and the molecular geometry of the following molecules is hydrogen bonding true! The middle, rather than at the end, which one of the following molecules is hydrogen bonding is... Attractions, hydrogen bonding is a polar molecule under grant numbers 1246120, 1525057, and ( )... What condition must exist for a liquid to boil Section:9.3 15 generate an instantaneous or induced dipole, called induced... If they vibrate enough, they bump into each other cell contains __________ Cs+ ions and __________ pressure! Theory to predict the melting and boiling points for methylamine ( CH 3 NH 2.... Amp ; solids Practice Quiz 2 is true about liquids but not true with regard to water, ___ the. Each substance Medium Section:9.5 16 hydrogen bonds NF3 B ) CS2 C ) CH3CHO D ) NaI Ans E...
Craigslist Stockton For Sale,
Amanda Lynn Nordictrack,
Suva Beauty Controversy,
Ramsey County Jail Roster List Today,
Articles W