1.) If a molecule has a high vapor pressure… A) Then the molecule experiences strong intermolecular...
1.) If a molecule has a high vapor pressure…
A) Then the molecule experiences strong intermolecular forces.
B) Then the molecule experiences weak intermolecular forces.
C) The molecule definitely experiences hydrogen bonding.
D) There is not enough information to determine the strength of the intermolecular forces.
2.) A solution of ethanol in water has a boiling point of 100.55oC. What is the molality of the ethanol in the water?
Boiling point for pure water = 100oC
Kb = 0.51 oC /m
Δ T b = Kb x m x i
A) 0.53 m
B) 0.51 m
C) 1.07 m
D) 2.14 m
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1.) If a molecule has a high vapor pressure…
A) Then the molecule experiences strong intermolecular...
1.) If a molecule has a high vapor pressure… A) Then the molecule experiences strong intermolecular...
1.) If a molecule has a high vapor pressure… A) Then the molecule experiences strong intermolecular forces. B) Then the molecule experiences weak intermolecular forces. C) The molecule definitely experiences hydrogen bonding. D) There is not enough information to determine the strength of the intermolecular forces. 2.) A solution of ethanol in water has a boiling point of 100.55oC. What is the molality of the ethanol in the water? Boiling point for pure water = 100oC Kb = 0.51 oC...
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figure 1 Figure 2 Liquid ethanol mm P increasing P = equilibrium vapor pressure P=0 Add...
figure 1
Figure 2
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figure 1
Figure 2
Liquid ethanol mm P increasing P = equilibrium vapor pressure P=0 Add System comes to equilibrium ethanol Evacuated flask, pressure zero Molecules begin to vaporize, pressure increases Molecules leave and enter liquid at equal rates, pressure reaches steady-state value 34.6 °C 78.3°C 100 °C Normal boiling point Diethyl ether Vapor pressure (torr) Ethyl alcohol (ethanol) Water Ethylene glycol 100 20 40 60 80 Temperature (°C) Copyright 2009 Pearson Prentice Hall,Inc. Click on: (Figure 2) and study...
ondi n I General Chemistry Name Intermolecular Forces GR 1. Which of the following is the lowest energy state of matter? a. fluid b. gas c. liquid 2. What fundamental electrostatic force is responsible for the chemica substance? a. dipole-dipole forces b. intramolecular forces c. hydrogen bonding forces d. intermolecular forces Which substance can participate in dipole-dipole forces? 3. a. Xe b. SCO c. MgC2 4. Which substance can participate in hydrogen bonding? a. (CHsCH2)3N b. CHsCH2OCH2CH3 c. CH3NI 5....
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...
What type(s) of intermolecular forces are expected between SO2Cl2 molecules? ball & stick V - labels Indicate with a Y (yes) or an N (no) which apply. dipole forces induced dipole forces hydrogen bonding What type(s) of intermolecular forces are expected between PC13 molecules? Choose all that apply dispersion hydrogen bonding dipole-dipole ion-ion What type(s) of intermolecular forces are expected between H20 molecules? ball & stick v + labels Indicate with a Y (yes) or an N (no) which apply....
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