Liquids and Solids Chemistry Flashcards

Flashcards on Liquids and Solids based on Zumdahl Chemistry textbook, Chapter 10, Eighth Edition.

What is the strongest intermolecular force experienced by noble gases?

London dispersion forces

Why is methane (CH4) a gas, but carbon tetrachloride (CCl4) a liquid at room conditions?

Both molecules are nonpolar. Because CCl4 has more electrons than CH4, its London forces are stronger, so CCl4 is a liquid while CH4 is a gas.

Which of the following species exhibits the strongest intermolecular forces?: CH4, H2O, N2, CO, He

H2O

What type(s) of intermolecular forces is (are) exhibited by methane (CH4)?

London dispersion forces

When a water molecule forms a hydrogen bond with another water molecule, which atoms are involved in the interaction?

A hydrogen atom from one water molecule, and an oxygen atom from the other water molecule.

Which of the following has the highest boiling point?: H2O, HF, NH3, N2, Na2S

Na2S

Which intermolecular force is the strongest?

Ion–ion interactions

Which of the following compounds has the lowest boiling point?: C2H6, C3H8, CH4, C5H12, C4H10

CH4

Which of the following is the correct order of boiling points for KNO3, CH3OH, C2H6, and Ne?

Ne < C2H6 < CH3OH < KNO3

Consider two liquids, A and B. Liquid A exhibits stronger intermolecular forces than liquid B. Which of the following statements is true?

The surface tension and viscosity of liquid A are greater than those of liquid B.

A certain metal fluoride crystallizes in such a way that the fluoride ions occupy simple cubic lattice sites, while the metal atoms occupy the body centers of half the cubes. What is the formula for this metal fluoride?

MF2

Which of the following statements is incorrect?: Ionic solids generally have high melting points, Ionic solids are insulators, The binding forces in a molecular solid include London dispersion forces, Molecular solids generally have high melting points.

Molecular solids generally have high melting points.

A certain metal fluoride crystallizes in such a way that the fluoride ions occupy simple cubic lattice sites, while the metal ions occupy the body centers of half the cubes. Which of the following could be the metal ion?

The calcium ion

Consider the following boiling point data and decide which liquid has the highest vapor pressure at room temperature: Water, Methanol, Ethanol, Diethyl ether, Ethylene glycol

Diethyl ether, CH3CH2–O–CH2CH3

Given the graph, what is the boiling point of carbon tetrachloride at standard pressure?

77°C

Which of the following would you expect to have the lowest vapor pressure?: CH3OCH3, CH3CH2OH, CH3CH2CH3, CH3CH2CH2CH3, H2O

H2O

What is the vapor pressure of water at 70°C?

0.31 atm