Chemistry Homework Help

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Intermolecular Forces and Physical Properties

Q. Which molecule would you expect to have a higher boiling point and why? H2NCH2NH2 or HOCH2OH

Solved • May 3, 2020

Intermolecular Forces and Physical Properties

Q. Rank the shown compounds by boiling point. Answer Bank: Isopentane, neopentane, pentane

Solved • Apr 30, 2020

Intermolecular Forces and Physical Properties

Q. Match each property of a liquid to what it indicates about the relative strength of the intermolecular forces in that liquid. High viscosity, high vapor pressure, high surface tension, high boiling point

Solved • Apr 30, 2020

Intermolecular Forces and Physical Properties

Q. Arrange these compounds by their expected boiling point. CH3OH, CH4, CH3Cl

Solved • Apr 30, 2020

Intermolecular Forces and Physical Properties

Q. What is the strongest evidence for hydrogen bonding? 1. Hydrogen is able to accept or donate electrons, so it is the most versatile atom in the periodic chart. 2. Hydrogen can be considered either a metal or nonmetal. 3. The boiling points of NH3, H2O, and HF are abnormally high compared with the rest of the hydrides in their respective periods. 4. Hydrogen has an extremely low electronegativity.

Solved • Apr 20, 2020

Intermolecular Forces and Physical Properties

Q. The vapor pressure of all liquids. 1. is the same at 100°C. 2. increases with volume of liquid present. 3. is the same at their freezing points. 4. decreases with the increasing volume of the container 5. increases with temperature.

Solved • Apr 20, 2020

Intermolecular Forces and Physical Properties

Q. Methanol (CH3OH) has higher vapor pressure than octanol (C8H17OH) because 1. methanol is non-polar and octanol is polar 2. methanol has weaker dispersion forces than octanol 3. methanol has stronger dispersion forces than octanol 4. octanol exhibits hydrogen bonding and methanol does not 5. methanol exhibits hydrogen bonding and octanol does not

Solved • Apr 20, 2020