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: A mixture of CH4 (g) and C2 H6 (g) has a total pressure of 0.54 atm . Just enough O2 (g) is added to the mixture to bring about its complete combustion to CO2 (g) and H2 O(g). The total pressure of the two product gases is 2.3 atm .Assuming constant volume and temperature, find the mole fraction of CH4 in the mixture.

Solution: A mixture of CH4 (g) and C2 H6 (g) has a total pressure of 0.54 atm . Just enough O2 (g) is added to the mixture to bring about its complete combustion to CO2 (g) and H2 O(g). The total pressure of th

Problem

A mixture of CH4 (g) and C2 H6 (g) has a total pressure of 0.54 atm . Just enough O2 (g) is added to the mixture to bring about its complete combustion to CO2 (g) and H2 O(g). The total pressure of the two product gases is 2.3 atm .

Assuming constant volume and temperature, find the mole fraction of CH4 in the mixture.

Solution

We’re being asked to calculate the mole fraction of CH4 in a mixture of CH4 and C2H6


Recall that the partial pressure of a gas (PGas) in a mixture is given by:

Pgas =χgasPtotal


where χGas = mole fraction of the gas and Ptotal = total pressure of the gas mixture


The mole fraction of the gas is then given by:

χgas = moles gastotal moles


Solution BlurView Complete Written Solution