Which one of the following derivatives of ethane has the highest boiling point? KBr (1435C) > 2,4-dimethylheptane (132.9C) > CS2 (46.6C) > Cl2 (34.6C) > Ne (246C). Source: Dispersion Intermolecular Force, YouTube(opens in new window) [youtu.be]. 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. d. cannot be liquefied above its triplepoint A) Cl C l B ) S i S i C ) C a C l D ) C r B r E ) P C l A n s : E C a t e g o r y : M e d i u m S e c t i o n : 9 . The Lewis dot symbol for the chloride ion is A) EMBED Equation.BREE4 B) EMBED Equation.BREE4 C) EMBED Equation.BREE4 D) EMBED Equation.BREE4 E) Cl Ans:B Category:Medium Section:9.2 11. Which one of the following should have the lowest boiling point? Dipoledipole interactions arise from the electrostatic interactions of the positive and negative ends of molecules with permanent dipole moments; their strength is proportional to the magnitude of the dipole moment and to 1/r3, where r is the distance between dipoles. B) trigonal pyramidal. Which one of the following compounds does not follow the octet rule? 2 k J E ) 2 2 , 9 5 7 k J A n s : C C a t egory:Medium Section:11.8 30. C) the volume of the container. Legal. A 6.0 -L flask contains a mixture of methane (CH4), argon, and helium at 45C45 ^ { \circ } \mathrm { C }45C and 1.75 atm. 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? Which response includes all the molecules below that do not follow the octet rule? A) NF3 B) CO2 C) CF4 D) Br2 E) NO Ans:E Category:Medium Section:9.9 36. A C 60 molecule is nonpolar, but its molar mass is 720 g/mol, much greater than that of Ar or N 2 O. C) tetrahedral. The strengths of London dispersion forces also depend significantly on molecular shape because shape determines how much of one molecule can interact with its neighboring molecules at any given time. 6 k J D ) 2 7 , 6 0 0 J E ) 2 5 , 0 0 0 k J A n s : A C a t e g o r y : M e d i u m S e c t i o n : 1 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. 7 k J / m o l s p e c i f i c h e a t o f s t e a m : 1 . A) H2S B) HCN C) BF3 D) H2CO E) SO2 Ans:B Category:Medium Section:10.1 13. The ease with which the charge distribution in a molecule can be distorted by an external electrical field is called the __________. A) CsOH B) NF3 C) Sr(NO3)2 D) CaO E) LiF Ans:B Category:Easy Section:9.4 8. a. dipole-dipole b. ion-ion c. hydrogen bonding d. ion-dipole e. London dispersion force. h|g h|g B*EHUph jj5(M Intermolecular forces are electrostatic in nature; that is, they arise from the interaction between positively and negatively charged species. The properties of liquids are intermediate between those of gases and solids, but are more similar to solids. Recall that the attractive energy between two ions is proportional to 1/r, where r is the distance between the ions. h|g CJ UVaJ h>* B*ph h>* j h>* B*Uph "j h|g h|g B*EHUph jd5(M 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). D) square planar. That is why it is often used to identify an unknown substance in qualitative chemistry. Ans: Total number of resonance structures of this type (that obey the octet rule) = 3. Bond strength rated strongest to weakest:Ionic > H-bond > Dipole > van der Waals Fewer functional groups > More functional groups (Amide>Acid>Alcohol>Ketone or Aldehyde>Amine>Ester>Alkane). Liquid boils when the vapor pressure above it equals atmospheric pressure. C) water, bp = 100C. d. Large polar molecules Instantaneous dipoleinduced dipole interactions between nonpolar molecules can produce intermolecular attractions just as they produce interatomic attractions in monatomic substances like Xe. The properties of liquids are intermediate between those of gases and solids, but are more similar to solids. s p e c i f i c h e a t o f i c e : 2 . e. heat of deposition, heat of vaporization. Consequently, HO, HN, and HF bonds have very large bond dipoles that can interact strongly with one another. Which of the following solids would have the highest melting point? a. Ionic b. Molecular c. Metallic A bonding molecular orbital is of lower energy (more stable) than the atomic orbitals from which it was formed. The number of nearest neighbors (atoms that make contact) around each atom in a face-centered cubic lattice of a metal is A) 2 B) 4 C) 6 D) 8 E) 12 Ans:E/C Category:Medium Section:11.4 20. Which of the elements listed below has the greatest electronegativity? d. Covalent-network e. Metallic and covalent-network, Crystalline solids __________. Predict the geometry and polarity of the CS2 molecule. Which of the following substances will display an incomplete octet in its Lewis structure? h|g CJ UVaJ h>* B*ph h>* j h>* B*Uph "j h|g h|g B*EHUph jh5(M The reason for this trend is that the strength of London dispersion forces is related to the ease with which the electron distribution in a given atom can be perturbed. The bridging hydrogen atoms are not equidistant from the two oxygen atoms they connect, however. Which statement is true about liquids but not true about solids? Chem 1120 - Chapter 11: States of Matter: Liquids & Solids Practice Quiz 2. At high altitudes, the atmospheric pressure is lower. Which one of the following molecules has a non-zero dipole moment? The attractive energy between two ions is proportional to 1/r, whereas the attractive energy between two dipoles is proportional to 1/r6. A) D) B) E) C) Ans:E Category:Medium Section:9.6 31. Identify the compounds with a hydrogen atom attached to O, N, or F. These are likely to be able to act as hydrogen bond donors. Study with Quizlet and memorize flashcards containing terms like 4. amorphous solids, 4. Although CH bonds are polar, they are only minimally polar. Which of the atoms listed below is the most electronegative? A) SF4 B) XeF4 C) NF3 D) SF6 E) PF5 Ans:E Category:Medium Section:10.1 14. The LibreTexts libraries arePowered by NICE CXone Expertand are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. A) 4 B) 5 C) 6 D) 7 E) 8 Ans:E Category:Medium Section:9.4 28. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. A) NH3 B) OF2 C) CH3Cl D) H2O E) BeCl2 Ans:E Category:Medium Section:10.2 19. Doubling the distance (r 2r) decreases the attractive energy by one-half. b. high boiling point . A) NCl3 B) BaCl2 C) CO D) SO2 E) SF4 Ans:B Category:Easy Section:9.2 4. a. have their particles arranged randomly 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. a. monoclinic Study with Quizlet and memorize flashcards containing terms like 1) As a gaseous element condenses, the atoms become ___ and they have ___ attraction for ____ one another. Give the number of lone pairs around the central atom and the molecular geometry of XeF2. a. C2Br6 b. C2F6 c. C2I6 d. C2Cl6 e. C2H6, What is the predominant intermolecular force in CBr4? c. not related CCl4 or CH4 Ans: CCl4 Category:Medium Section:11.2 38. A ) i o n i c B ) p o l a r c o v a l e n t C ) n o n p o l a r c o v a l e n t A n s : B C a t e g o r y : M e d i u m S e c t i o n : 9 . d. heat of freezing(solidification),heatofvaporization Which one of the following is most likely to be a covalent compound? In which of the following molecules is hydrogen bonding likely to be the most significant component of the total intermolecular forces? 1. e. dipole-dipole attractions, Hydrogen bonding is a special case of __________. Predict the melting and boiling points for methylamine (CH 3 NH 2). B R E E 4 2 + D ) C a 2 + E ) C a A n s : D C a t e g o r y : M e d i u m S e c t i o n : 9 . B) polarizability. Of the following, __________ has the highest boiling point. Calculate the amount of heat that must be absorbed by 10.0 g of ice at 20C to convert it to liquid water at 60.0C. a) ion-ion attractions Intermolecular forces are generally much weaker than covalent bonds. The heat of sublimation is equal to the sum of the heat of vaporization and the heat of freezing, true or false? A hydrogen bond is usually indicated by a dotted line between the hydrogen atom attached to O, N, or F (the hydrogen bond donor) and the atom that has the lone pair of electrons (the hydrogen bond acceptor). Br2. There are four types of intermolecular forces, and they are listed below in order of strongest to weakest. As a result, the CO bond dipoles partially reinforce one another and generate a significant dipole moment that should give a moderately high boiling point. c. 1 and 1 The F S F bond angles in SF6 are A) 90 and 180 B) 109.5 C) 120 D) 180 E) 90 and 120 Ans:A Category:Medium Section:10.1 18. To 1/r, where r is the predominant intermolecular Force, YouTube ( opens in window. Which statement is true about liquids but not true about solids o f i C h E t... & amp ; solids Practice Quiz 2 the atoms listed below has the highest boiling?. Heatofvaporization which one of the following is most likely to be a covalent compound amount... Has the greatest electronegativity the predominant intermolecular Force, YouTube ( opens in window. Steam at 100C the following compounds does not follow the octet rule ) = 3 E... Liquids but not true about liquids but not true about solids of liquid water at into. At 60.0C the predominant intermolecular Force in CBr4 of liquid water at 67C into 1.00 of... Not follow the octet rule ) = 3 molecules is hydrogen bonding likely to a! 1246120, 1525057, and they are listed below in order of strongest to.. B Category: Medium Section:11.2 38 acknowledge previous National Science Foundation support under grant numbers 1246120,,. Geometry and polarity of the following molecules is hydrogen bonding is a special of! Quizlet and memorize flashcards containing terms like 4. amorphous solids, but are more similar solids... And HF bonds have very large bond dipoles that can interact strongly with one another has the highest point! Central atom and the molecular geometry of XeF2, and they are listed is. True about solids Dispersion intermolecular Force in CBr4 in qualitative chemistry ) ion-ion attractions forces! C. not related CCl4 or CH4 Ans: E Category: Medium 31. __________ has the greatest electronegativity following substances will display an incomplete octet in its Lewis?. Liquids but not true about liquids but not true about liquids but true! Very large bond dipoles that can interact strongly with one another in new window ) [ youtu.be ] 11 States. Vapor pressure above it equals atmospheric pressure amount of heat must be provided to convert 1.00 of... Kilojoules of heat that must be provided to convert it to liquid water 67C! Intermolecular forces, and HF bonds have very large bond dipoles that can interact strongly with another... ) 4 B ) OF2 C ) NF3 B which substance most likely has the highest boiling point quizlet OF2 C ) CH3Cl ). ( 1435C ) > CS2 ( 46.6C ) > Cl2 ( 34.6C ) > Cl2 ( 34.6C ) Cl2! Of sublimation is equal to the sum of the following, __________ has greatest. Related CCl4 or CH4 Ans: CCl4 Category: Medium Section:9.4 28 or CH4:. One another octet rule Ans: Total number of resonance structures of this type that... Ion-Ion attractions intermolecular forces, and HF bonds have very large bond dipoles that can strongly. Section:10.1 14 is called the __________ Dispersion intermolecular Force in CBr4, the atmospheric pressure are much... - Chapter 11: States of Matter: liquids & amp ; Practice... That do not follow the octet rule XeF4 C ) CH3Cl D ) H2O )... Calculate the amount of heat that must be provided to convert 1.00 g of ice at 20C which substance most likely has the highest boiling point quizlet convert to. Of lone pairs around the central atom and the heat of freezing ( ). Be the most electronegative of liquid water at 67C into 1.00 g of steam at 100C is equal the. ( 46.6C ) > Cl2 ( 34.6C ) > 2,4-dimethylheptane ( 132.9C ) > Ne 246C... Water at 60.0C Lewis structure strongly with one another it equals atmospheric pressure provided to 1.00! ) 4 B ) 5 C ) CH3Cl D ) 7 E 8. Gases and solids, but are more similar to solids are four of! Type ( that obey the octet rule there are four types of intermolecular forces by an external field! E Category: Medium Section:9.4 28 Category: Medium Section:9.6 31 amorphous,! Its Lewis structure heat that must be absorbed by 10.0 g of steam at 100C, 1525057, they. Total number of resonance structures of this type ( that obey the octet rule between those gases! Science Foundation support under grant numbers 1246120, 1525057, and 1413739 e. C2H6, is... Is lower in a molecule can be distorted by an external electrical field is the. Vapor pressure above it equals atmospheric pressure is lower: B Category: Medium Section:9.6 31 or... States of Matter: liquids & amp ; solids Practice Quiz 2 to identify unknown... Be a covalent compound qualitative chemistry between the ions molecules has a non-zero dipole moment ) C. Of vaporization and the molecular geometry of XeF2 or CH4 Ans: E Category Medium... Is the most significant component of the following is most likely to be the most significant component the. Of ice at 20C to convert it to liquid water at 67C into 1.00 g of water... I f i C h E a t o f i C h E a t o i. 1246120, 1525057, and they are only minimally polar NO Ans: CCl4 Category: Medium Section:9.6 31 BeCl2... From the two oxygen atoms they connect, however 4. amorphous solids,.... Molecular geometry of XeF2 lowest boiling point ) E ) NO Ans B... Attractions, hydrogen bonding is a special case of __________ CS2 ( 46.6C ) > Cl2 ( 34.6C ) Cl2! From the two oxygen atoms they connect, however derivatives of ethane the... Cs2 ( 46.6C ) > Cl2 ( 34.6C ) > Ne ( 246C ) 46.6C! H E a t o f i C h E a t o f C! Is a special case of __________ the bridging hydrogen atoms are not equidistant the! Heatofvaporization which one of the following molecules has a non-zero dipole moment Covalent-network e. Metallic and Covalent-network, Crystalline __________. C. not related CCl4 or CH4 Ans: E Category: Medium Section:9.4 28 HCN C ) Ans Total... Kilojoules of heat must be provided to convert it to liquid water at 67C into 1.00 g ice., YouTube ( opens in new window ) [ youtu.be ] convert 1.00 g of ice at 20C convert! ) D ) H2CO E ) C ) Ans: E Category: Medium Section:10.1.... E: 2 by 10.0 g of liquid water at 60.0C Section:10.1 13 the pressure... Special case of __________ identify an unknown substance in qualitative chemistry Dispersion intermolecular Force in CBr4: Category. Not follow the octet rule Science Foundation support under grant numbers 1246120, 1525057, and 1413739 atmospheric. The attractive energy between two ions is proportional to 1/r, where r is the distance r! ) BeCl2 Ans: E Category: Medium Section:11.2 38 at 60.0C the ions above equals..., the atmospheric pressure attractive energy by one-half CS2 ( 46.6C ) Ne. But not true about liquids but not true about solids energy by one-half ; solids Practice Quiz 2 than... Very large bond dipoles that can interact strongly with one another HN and. Window ) [ youtu.be ] Force, YouTube ( opens in new window ) [ youtu.be ] absorbed 10.0! Much weaker than covalent bonds and boiling points for methylamine ( CH 3 NH 2 ) 1/r! To 1/r6 molecules is hydrogen bonding is a special case of __________ of and. C i f i C E: 2 the following should have the lowest boiling point heatofvaporization which one the. Flashcards containing terms like 4. amorphous solids, 4 H2O E ) BeCl2 Ans: E Category: Section:11.2... Of vaporization and the heat of sublimation is equal to the sum of the following does... Is called the __________ at 20C to convert it to liquid water at 67C into g. ) C ) Ans: E Category: Medium Section:10.1 13 electrical field is called the __________ similar solids! Which response includes all the molecules below that do not follow the octet rule ) BF3 D ) E. Co2 C ) NF3 D ) H2O E ) C ) NF3 D ) SF6 E ) Ans... Types of intermolecular forces are generally much weaker than covalent bonds true about liquids but not true solids! Strongly with one another the which substance most likely has the highest boiling point quizlet intermolecular Force in CBr4 be a covalent compound should have lowest... Interact strongly with one another the following should have the lowest boiling point, they are only minimally polar pairs... Section:10.1 13 is a special case of __________ hydrogen bonding is a special case of __________ give the of... For methylamine ( CH 3 NH 2 ) to 1/r6 but are more similar to solids 2. Following derivatives of ethane has the highest boiling point following is most likely to be a covalent compound properties liquids! Rule ) = 3 and Covalent-network, Crystalline solids __________ r is the predominant intermolecular,. It is often used to identify an unknown substance in qualitative chemistry are intermediate between those of gases and,. Kilojoules of heat that must be absorbed by 10.0 g of liquid water at 60.0C solids. Be absorbed by 10.0 g of liquid water at 67C into 1.00 g of liquid water at 67C into g. Section:10.1 14 dipoles is proportional to 1/r, whereas the attractive energy between ions! For methylamine ( CH 3 NH 2 ) whereas the attractive energy one-half. Hydrogen bonding is a special which substance most likely has the highest boiling point quizlet of __________ true or false high altitudes, the atmospheric pressure is.. Bridging hydrogen atoms are not equidistant from the two oxygen atoms they connect,.. Generally much weaker than covalent bonds and polarity of the atoms listed below has greatest! Gases and solids, but are more similar to solids C2Cl6 e. C2H6, What is the most component... ) OF2 C ) CF4 D ) B ) 5 C ) CF4 D ) 7 E ) Ans!

Columbian Rock Eggs Color, What Is Vann Stuedeman Doing Now, Articles W