All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

Solution: Consider the following gases, all at STP: Ne, SF6, N2, CH4.Which one has the highest total molecular volume relative to the space occupied by the gas?

Solution: Consider the following gases, all at STP: Ne, SF6, N2, CH4.Which one has the highest total molecular volume relative to the space occupied by the gas?

Problem

Consider the following gases, all at STP: Ne, SF6, N2, CH4.

Which one has the highest total molecular volume relative to the space occupied by the gas?

Solution

We’re being asked which has the highest total molecular volume relative to the space occupied by the gas.


The ideal gas theory does not consider the volume of the gas molecules itself so we need to consider another theory that can account for like the Van de Waals theory of gas.


The Van der Waals equation is shown below:

P+an2V2V-nb=nRT

P = pressure, atm
V = volume, L
n = # of moles, mol
R = gas constant = 0.08206 (Latm)/(molK)
T = temperature, K
a = polarity coefficient
= size coefficient


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