Part A Which of the following substances will be more volatile? C6H6 CH3OH NaCl H2O a....
Part A
Which of the following substances will be more volatile?
C6H6 CH3OH NaCl H2O
a. NaCl
b. H2O
c. C6H6
d. C6H6
Part B
Which substance has a higher melting point?
C6H6 CH3OH NaCl H2O
a. H2O
b. NaCl
c. C6H6
d. CH3OH
Part C
What is the intermolecular force present in I2 molecule?
a. hydrogen bonds
b. ionic attractions
c. dipole-dipole forces
d. dispersion forces
Homework Answers
1) Benzene is the more volatile substance.
Water and Methanol can form Hydrogen bond. NaCl is a ionic solid.
2) NaCl has high melting point as it is a ionic compound. It has electrostatic forces of attractions.
3) Among I2 molecules, the forces of attractions present are dispersion forces.
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Part A
Which of the following substances will be more volatile?
C6H6 CH3OH NaCl H2O
a....
PART B MELTING POINTS OF SOME ORGANIC SUBSTANCES Circle the pair of substances of which you measured the melting point...
PART B MELTING POINTS OF SOME ORGANIC SUBSTANCES Circle the pair of substances of which you measured the melting point range 7 2-naphthol (A) and naphthalene (B) benzophenone (A) and benzil (B Complete the following table: [6 marks] Hint Molecules containing only Cand H can be assumed to be non-polar Present in Present in А Stronger in which substance? Why? Intermolecular Force В (yes or no) (yes or no) London Dispersion Dipole-Dipole Hydrogen Bonding Which of the two substances that...
Identify the intermolecular forces present in each of these substances H2O CO2 HCI CO
Identify the intermolecular forces present in each of these substances. S Hydrogen bonding dipole-dipole, Dipole-dipole and and dispersion dispersion only Dispersion only H2O CO2 HCI CO Incorrect. A substance that simply contains H does not necessarily exhibit hydrogen bonding Hydrogen bonding occurs between molecules in which His bonded directly to N, O, or F.
Identify the intermolecular forces present in each of these substances. S Hydrogen bonding dipole-dipole, Dipole-dipole and and dispersion dispersion only Dispersion only H2O CO2 HCI CO...
please help with this question for the circled substances:) TIA PART B-MELTING POINTS OF SOME ORGANIC...
please help with this question for the circled substances:)
TIA
PART B-MELTING POINTS OF SOME ORGANIC SUBSTANCES 7. Cirele the pair of substances of which you measured the melting point range 2-naphthol (A) and naphthalene (B) benzophenone (W) and benzil (B Complete the following table: [6 marka) Hint Molecules containing only Cand H can be assumed to be non polar. Present in в Present in Stronger in which subatance? Why? Intermolecular Force A (yes or no) (yes or no) London...
Select the single best answer. Explain in terms of intermolecular forces the following: Why NaCl has...
Select the single best answer. Explain in terms of intermolecular forces the following: Why NaCl has a higher melting point than 12 Because NaCl is soluble in water, and I, is not. Because NaCl is an ionic compound, and the ion-ion attractions are much stronger than the dispersion forces between the I, molecules. Because NaCl is a solid, and I, is a liquid. Because NaCl can form hydrogen bonds, and I cannot.
2. Identify the strongest type of intermolecular forces in acetone, ethanol, water and hexane. (Structures listed...
2. Identify the strongest type of intermolecular forces in acetone, ethanol, water and hexane. (Structures listed on page 15.) Experiment 2 Intermolecular Forces There are three general types of intermolecular forces. All substances exhibit London Dispersion Forces (LDF), and they are generally the weakest of the three types. These London forces are due to the attractions between small, temporary dipoles that arise from the constant, random movement of the electrons in a substance. As molar mass increases, the size of...
INTERMOLECULAR FORCES INTRODUCTION LEARNING OBJECTIVES To relate the effecet of intermolecular fo...
INTERMOLECULAR FORCES INTRODUCTION LEARNING OBJECTIVES To relate the effecet of intermolecular forces on relative melting points and vapour pressures of some organic substances THEORY Weak attractive forces that occur between individual molecules in substances are called intermolecular forces. These include London dispersion forces, dipole-dipole forces and hydrogen-bonding forces. Collectively, the three types of intermolecular forces are referred to as Van der Waals forces. These attractive forces are much weaker than the chemical bonds between atoms in a molecule. Note that...
Methanol (CH3OH) is a volatile liquid used widely as a laboratory solvent. Methanol has a standard...
Methanol (CH3OH) is a volatile liquid used widely as a laboratory solvent. Methanol has a standard boiling point of 64.8 °C and its enthalpy of vaporization is 37.6 kJ mol! What is its vapour pressure (in bar) at 52.4 °C? You have 5 attempts at this question. Answer: Check Consider the molecule below: :0=s=0: Select ALL the intermolecular forces that are expected to be present between two of these molecules. Select as many answers as are applicable, however points will...
oblem 6.149 Part A indicate the major type of intermolecular forces ) ionic bonds. (2) dipol-dipole...
oblem 6.149 Part A indicate the major type of intermolecular forces ) ionic bonds. (2) dipol-dipole attractions. (3) hydrogen bonds. (4) dispersion forces that occurs between particles of the following Drag the appropriate items to their respective bins. Reset Help Na O mama wa @ lonie bonds Dipol-dipole attractions Hydrogen bonds Dispersion forces Submit Request Answer Provide Feedback
h of the following statements is NOT true? London dispersion forces are present in all substances but are the only significant intermolecular forces in nonpolar substances. ) The density of the l...
h of the following statements is NOT true? London dispersion forces are present in all substances but are the only significant intermolecular forces in nonpolar substances. ) The density of the liquid state of a substance is greater than the density of its gaseous state. The thermal energy in a liquid allows the atoms within molecules to completely overcome the attractions between them so they flow. Most liquids can be converted to a gas by reducing pressure and/or heating. The...
What intermolecular attractions will be formed when the following substances condense from the gas phase? X...
What intermolecular attractions will be formed when the following substances condense from the gas phase? X Incorrect. Is this molecule polar or capable of hydrogen bonding? Recall that London forces occur between all molecules. (a) hexane (CH34) hydrogen bonding lonic bonding dipole-dipole London forces x Incorrect. Is the oxygen bound to an H, or is this an ether, which cannot hydrogen bond? Recall that all molecules will have London forces. (b) acetone (HACCOCH) London forces hydrogen bonding dipole-dipole (c) jodine,...
PART B MELTING POINTS OF SOME ORGANIC SUBSTANCES Circle the pair of substances of which you measured the melting point range 7 2-naphthol (A) and naphthalene (B) benzophenone (A) and benzil (B Complete the following table: [6 marks] Hint Molecules containing only Cand H can be assumed to be non-polar Present in Present in А Stronger in which substance? Why? Intermolecular Force В (yes or no) (yes or no) London Dispersion Dipole-Dipole Hydrogen Bonding Which of the two substances that...
Identify the intermolecular forces present in each of these substances. S Hydrogen bonding dipole-dipole, Dipole-dipole and and dispersion dispersion only Dispersion only H2O CO2 HCI CO Incorrect. A substance that simply contains H does not necessarily exhibit hydrogen bonding Hydrogen bonding occurs between molecules in which His bonded directly to N, O, or F.
Identify the intermolecular forces present in each of these substances. S Hydrogen bonding dipole-dipole, Dipole-dipole and and dispersion dispersion only Dispersion only H2O CO2 HCI CO...
please help with this question for the circled substances:)
TIA
PART B-MELTING POINTS OF SOME ORGANIC SUBSTANCES 7. Cirele the pair of substances of which you measured the melting point range 2-naphthol (A) and naphthalene (B) benzophenone (W) and benzil (B Complete the following table: [6 marka) Hint Molecules containing only Cand H can be assumed to be non polar. Present in в Present in Stronger in which subatance? Why? Intermolecular Force A (yes or no) (yes or no) London...
Select the single best answer. Explain in terms of intermolecular forces the following: Why NaCl has a higher melting point than 12 Because NaCl is soluble in water, and I, is not. Because NaCl is an ionic compound, and the ion-ion attractions are much stronger than the dispersion forces between the I, molecules. Because NaCl is a solid, and I, is a liquid. Because NaCl can form hydrogen bonds, and I cannot.
2. Identify the strongest type of intermolecular forces in acetone, ethanol, water and hexane. (Structures listed on page 15.) Experiment 2 Intermolecular Forces There are three general types of intermolecular forces. All substances exhibit London Dispersion Forces (LDF), and they are generally the weakest of the three types. These London forces are due to the attractions between small, temporary dipoles that arise from the constant, random movement of the electrons in a substance. As molar mass increases, the size of...
INTERMOLECULAR FORCES INTRODUCTION LEARNING OBJECTIVES To relate the effecet of intermolecular forces on relative melting points and vapour pressures of some organic substances THEORY Weak attractive forces that occur between individual molecules in substances are called intermolecular forces. These include London dispersion forces, dipole-dipole forces and hydrogen-bonding forces. Collectively, the three types of intermolecular forces are referred to as Van der Waals forces. These attractive forces are much weaker than the chemical bonds between atoms in a molecule. Note that...
Methanol (CH3OH) is a volatile liquid used widely as a laboratory solvent. Methanol has a standard boiling point of 64.8 °C and its enthalpy of vaporization is 37.6 kJ mol! What is its vapour pressure (in bar) at 52.4 °C? You have 5 attempts at this question. Answer: Check Consider the molecule below: :0=s=0: Select ALL the intermolecular forces that are expected to be present between two of these molecules. Select as many answers as are applicable, however points will...
oblem 6.149 Part A indicate the major type of intermolecular forces ) ionic bonds. (2) dipol-dipole attractions. (3) hydrogen bonds. (4) dispersion forces that occurs between particles of the following Drag the appropriate items to their respective bins. Reset Help Na O mama wa @ lonie bonds Dipol-dipole attractions Hydrogen bonds Dispersion forces Submit Request Answer Provide Feedback
h of the following statements is NOT true? London dispersion forces are present in all substances but are the only significant intermolecular forces in nonpolar substances. ) The density of the liquid state of a substance is greater than the density of its gaseous state. The thermal energy in a liquid allows the atoms within molecules to completely overcome the attractions between them so they flow. Most liquids can be converted to a gas by reducing pressure and/or heating. The...
What intermolecular attractions will be formed when the following substances condense from the gas phase? X Incorrect. Is this molecule polar or capable of hydrogen bonding? Recall that London forces occur between all molecules. (a) hexane (CH34) hydrogen bonding lonic bonding dipole-dipole London forces x Incorrect. Is the oxygen bound to an H, or is this an ether, which cannot hydrogen bond? Recall that all molecules will have London forces. (b) acetone (HACCOCH) London forces hydrogen bonding dipole-dipole (c) jodine,...
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