1. The molecules are in a more disorderly motion as the system goes from the gas to liquid to the solid phase. A. True B. False 2. X-ray diffraction makes use of microwave to look into the structures of crystals. А. True B.False 3. Alcohols such as methanol and ethanol have much higher boiling points than would be eexpected from their molar masses because of the polar O-H bonds in these molecules, which produce hydrogen bonding. A. True B. False 4. The concave shape of the meniscus shows that water's adhesive forces toward the glass are weaker than its cohesive forces. A. True B. False 5. Given that the solid/liquid boundary line for water's phase diagram has a negative slope, the melting point of ice increases as the external pressure increases. A. True B. False 6. The higher density of ice means that ice formed on rivers and lakes will float, providing a layer of insulation that helps prevent bodies of water from freezing solid in the winter. A. True B. False 7. An alcoholic drink described as 30 proof is 15% alcohol by volume. A. True B. False 8. Molarity is defined in terms of volume of solution, whereas molality is defined in terms of the mass of a solvent. A. True B. False 9. Osmosis occurs when the applied pressure is greater than the osmotic pressure of the solution. A. True B. False 10. Colligative properties of solution depend on the number of the particles. A. True 11. Colligative properties depend on the nature of the particles of the solute present. B. False A. True B. False 12. The freezing point of a solution is greater than that of a pure solvent. А. True B. False 13. Osmotic pressure is particularly useful because a small concentration of the solute produces relatively small osmotic pressure.
1. The molecules are in a more disorderly motion as the system goes from the gas to liquid to the solid phase. A. True B. False 2. X-ray diffraction makes use of microwave to look into the structures of crystals. А. True B.False 3. Alcohols such as methanol and ethanol have much higher boiling points than would be eexpected from their molar masses because of the polar O-H bonds in these molecules, which produce hydrogen bonding. A. True B. False 4. The concave shape of the meniscus shows that water's adhesive forces toward the glass are weaker than its cohesive forces. A. True B. False 5. Given that the solid/liquid boundary line for water's phase diagram has a negative slope, the melting point of ice increases as the external pressure increases. A. True B. False 6. The higher density of ice means that ice formed on rivers and lakes will float, providing a layer of insulation that helps prevent bodies of water from freezing solid in the winter. A. True B. False 7. An alcoholic drink described as 30 proof is 15% alcohol by volume. A. True B. False 8. Molarity is defined in terms of volume of solution, whereas molality is defined in terms of the mass of a solvent. A. True B. False 9. Osmosis occurs when the applied pressure is greater than the osmotic pressure of the solution. A. True B. False 10. Colligative properties of solution depend on the number of the particles. A. True 11. Colligative properties depend on the nature of the particles of the solute present. B. False A. True B. False 12. The freezing point of a solution is greater than that of a pure solvent. А. True B. False 13. Osmotic pressure is particularly useful because a small concentration of the solute produces relatively small osmotic pressure.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
Related questions
Question
Transcribed Image Text:1. The molecules are in a more disorderly motion as the system goes from the gas to
liquid to the solid phase.
A. True
B. False
2. X-ray diffraction makes use of microwave to look into the structures of crystals.
A. True B. False
3. Alcohols such as methanol and ethanol have much higher boiling points than
would be eexpected from their molar masses because of the polar O-H bonds in
these molecules, which produce hydrogen bonding.
A. True B. False
4. The concave shape of the meniscus shows that water's adhesive forces toward the
glass are weaker than its cohesive forces.
A. True B. False
5. Given that the solid/liquid boundary line for water's phase diagram has a negative
slope, the melting point of ice increases as the external pressure increases.
A. True B. False
6. The higher density of ice means that ice formed on rivers and lakes will float,
providing a layer of insulation that helps prevent bodies of water from freezing
solid in the winter.
A. True B. False
7. An alcoholic drink described as 30 proof is 15% alcohol by volume.
A. True B. False
8. Molarity is defined in terms of volume of solution, whereas molality is defined in
terms of the mass of a solvent.
A. True B. False
9. Osmosis occurs when the applied pressure is greater than the osmotic pressure of
the solution.
A. True B. False
10. Colligative properties of solution depend on the number of the particles.
A. True B. False
11. Colligative properties depend on the nature of the particles of the solute present.
A. True B. False
12. The freezing point of a solution is greater than that of a pure solvent.
A. True B. False
13. Osmotic pressure is particularly useful because a small concentration of the solute
produces relatively small osmotic pressure.
A. True B. False
14. A solution with a nonvolatile solute is always greater than the boiling point of a
pure solvent.
A. True B. False
15. Henry's Law is to solutions what the Ideal Gas Law is to gases.
A. True
B. False
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