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: Part 1. A closed system with a volume of 2.0 L contains radon gas and liquid water, and the container is allowed to equilibrate at 27°C until the total pressure is constant. What is the partial pressure of radon if the total pressure is 780 torr and the water vapor partial pressure is 1.0 atm? Part 2. Some helium gas is added to the system, and the total pressure increases to 1.20 atm. What is the new partial pressure of radon?

Problem

Part 1. A closed system with a volume of 2.0 L contains radon gas and liquid water, and the container is allowed to equilibrate at 27°C until the total pressure is constant. 

What is the partial pressure of radon if the total pressure is 780 torr and the water vapor partial pressure is 1.0 atm? 

Part 2. Some helium gas is added to the system, and the total pressure increases to 1.20 atm. 

What is the new partial pressure of radon?

Solution

PART 1

We are being asked to determine the partial pressure of radon in a container with radon and water given that the partial pressure of water is 1 atm and the total pressure is 780 torr. 

The total pressure is given by the equation below:

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