Homework Answers
Like dissolves like.means that polar molecule dissolves in polar while non polar dissolves in non polar .
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14. Which of the following statements is false? a. Ammonia is soluble in water. b. Dipole-dipole...
1st attempt M See Periodic Table Two liquids - one polar, one nonpolar - have the...
1st attempt M See Periodic Table Two liquids - one polar, one nonpolar - have the same molar mass. Which one has the higher boiling point? Choose one: A. The polar liquid will have the higher boiling point, since its molecules have dipole-dipole interactions. B. They will have similar boiling points, since the dispersion forces depend upon molar mass. C. The nonpolar liquid will have the higher boiling point, since its molecules are more loosely held together. D. The nonpolar...
UUMIC. d) nitrogen. 14) Alcohol is soluble in water due to a) Covalent bond b) Ionic...
UUMIC. d) nitrogen. 14) Alcohol is soluble in water due to a) Covalent bond b) Ionic bond c) Hydrogen bond with water d) None of these uluslom avrololoy 15) NH3 has a much higher boiling point than PH3 because a) NH3 has a larger molecular mass b) NH3 forms hydrogen bond c) NH3 contains ionic whereas PH3 contains covalent bonds d) NH3 has lower dipole moment than PH3 .
Identify the following statements as either True or False; the structures referenced are shown below. NH2...
Identify the following statements as either True or False; the structures referenced are shown below. NH2 I H BIO B A is a primary amide Choose... C is considered an anti conformation Choose... - Stronger bonds will be found at higher wavenumbers in the infrared spectrum. Choose... - Choose... Dis a vicinal dichloride Acyclic alkanes have two fewer H atoms than cyclic alkanes with the same number of carbons. Choose... - Choose... Choose... - Compound E has primary, secondary, tertiary,...
Which of the following statements is false about NH3 and PH3 ? Your answer: O NH3...
Which of the following statements is false about NH3 and PH3 ? Your answer: O NH3 molecules are polar. O Dipole-dipole forces and dispersion forces exist between PH3 molecules. o (N) atom makes sp3 hybridization in NH3 molecule. O PH3 molecule has trigonal pyramidal geometry. O Normal boiling point of PH3 is higher than that of NH3.
Which of the following statements is FALSE? O When a substance melts, some - but not...
Which of the following statements is FALSE? O When a substance melts, some - but not all-of the intermolecular forces are disrupted O When a substance evaporates, all of the intermolecular forces are disrupted O A compound with stronger intermolecular forces will have a higher boiling point The enthalpy of sublimation is less than the enthalpy of vaporization but more than the enthalpy of fusion O The enthalpy of vaporization for a compound is greater than the enthalpy of fusion...
Which of the following statements are true? 1. Glass is mostly silicon dioxide and so when...
Which of the following statements are true? 1. Glass is mostly silicon dioxide and so when a long narrow glass tube is placed into water, the water molecules form adhesive forces with the oxygen atoms in the molecules of the glass 2. The Shape of the meniscus seen when water is poured into a glass container is due to cohesive forms being greater than the adhesive forced being experienced. 3. When a glass tube is placed into a dish of...
Which of the following best describes London dispersion forces. Question 1 options: the intermolecular forces that...
Which of the following best describes London dispersion forces. Question 1 options: the intermolecular forces that exist when ions from an ionic compound are attracted to the dipole of polar molecules in a mixture. involves molecular orientations in which the positive end of one dipole is near the negative end of another forces that exist only between molecules that contain hydrogen atoms bonded to highly electronegative atoms such as O, N, F. Interactions between temporary dipoles cause atoms to be...
Polar molecules tend to be soluble in water. a) True b) False Which liquid is miscible...
Polar molecules tend to be soluble in water. a) True b) False Which liquid is miscible with water? a) carbon tetrachloride b) ethyl alcohol c) bromine d) oil Which anion will not precipitate silver ion? a) chloride b) nitrate c) bromide d) carbonate Which pH listed below is most acidic? a) 3 d) 7 c)9 d) 14 A hydrogen ion consists of a(n) a) electron. b) proton. c) neutron. d) proton and electron. Bronsted and Lowry defined an acid as...
answer 1-4 Which of the following (a-d) is TRUE regarding solid NaCl dissolving in water The...
answer 1-4
Which of the following (a-d) is TRUE regarding solid NaCl dissolving in water The attraction of the water to the ions in NaCl is through dipole-dipole IFs. Water is considered the solute and NaCl the solvent. The partially positive oxygen in water is attracted to the chloride ion. d. The process of separating the sodium ions from the chloride ions is endothermic. All of these statements are true. polar For the following solution, describe the deviation with respect...
Which of the following are TRUE statements regarding evaporation, boiling, and vapor pressure? Select as many...
Which of the following are TRUE statements regarding evaporation, boiling, and vapor pressure? Select as many as are applicable however points will be deducted for incorrect answers. Select one or more: The standard boiling point occurs when the vapor pressure of a compound equals 1 bar The rate of evaporation at temperatures below the boiling point is dependent on surface area The vapor pressure at dynamic equilibrium in a closer container does not depend on the amount of liquid, as...
1st attempt M See Periodic Table Two liquids - one polar, one nonpolar - have the same molar mass. Which one has the higher boiling point? Choose one: A. The polar liquid will have the higher boiling point, since its molecules have dipole-dipole interactions. B. They will have similar boiling points, since the dispersion forces depend upon molar mass. C. The nonpolar liquid will have the higher boiling point, since its molecules are more loosely held together. D. The nonpolar...
UUMIC. d) nitrogen. 14) Alcohol is soluble in water due to a) Covalent bond b) Ionic bond c) Hydrogen bond with water d) None of these uluslom avrololoy 15) NH3 has a much higher boiling point than PH3 because a) NH3 has a larger molecular mass b) NH3 forms hydrogen bond c) NH3 contains ionic whereas PH3 contains covalent bonds d) NH3 has lower dipole moment than PH3 .
Identify the following statements as either True or False; the structures referenced are shown below. NH2 I H BIO B A is a primary amide Choose... C is considered an anti conformation Choose... - Stronger bonds will be found at higher wavenumbers in the infrared spectrum. Choose... - Choose... Dis a vicinal dichloride Acyclic alkanes have two fewer H atoms than cyclic alkanes with the same number of carbons. Choose... - Choose... Choose... - Compound E has primary, secondary, tertiary,...
Which of the following statements is false about NH3 and PH3 ? Your answer: O NH3 molecules are polar. O Dipole-dipole forces and dispersion forces exist between PH3 molecules. o (N) atom makes sp3 hybridization in NH3 molecule. O PH3 molecule has trigonal pyramidal geometry. O Normal boiling point of PH3 is higher than that of NH3.
Which of the following statements is FALSE? O When a substance melts, some - but not all-of the intermolecular forces are disrupted O When a substance evaporates, all of the intermolecular forces are disrupted O A compound with stronger intermolecular forces will have a higher boiling point The enthalpy of sublimation is less than the enthalpy of vaporization but more than the enthalpy of fusion O The enthalpy of vaporization for a compound is greater than the enthalpy of fusion...
Polar molecules tend to be soluble in water. a) True b) False Which liquid is miscible with water? a) carbon tetrachloride b) ethyl alcohol c) bromine d) oil Which anion will not precipitate silver ion? a) chloride b) nitrate c) bromide d) carbonate Which pH listed below is most acidic? a) 3 d) 7 c)9 d) 14 A hydrogen ion consists of a(n) a) electron. b) proton. c) neutron. d) proton and electron. Bronsted and Lowry defined an acid as...
answer 1-4
Which of the following (a-d) is TRUE regarding solid NaCl dissolving in water The attraction of the water to the ions in NaCl is through dipole-dipole IFs. Water is considered the solute and NaCl the solvent. The partially positive oxygen in water is attracted to the chloride ion. d. The process of separating the sodium ions from the chloride ions is endothermic. All of these statements are true. polar For the following solution, describe the deviation with respect...
Which of the following are TRUE statements regarding evaporation, boiling, and vapor pressure? Select as many as are applicable however points will be deducted for incorrect answers. Select one or more: The standard boiling point occurs when the vapor pressure of a compound equals 1 bar The rate of evaporation at temperatures below the boiling point is dependent on surface area The vapor pressure at dynamic equilibrium in a closer container does not depend on the amount of liquid, as...
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