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: The atmospheric pressure is 752 mm Hg. What is the pressure (atm) of the enclosed gas when h = 36.0 cm?a) 1.463 atmb) 0.9954 atmc) 1.009 atmd) 1.271 atme) 0.9826 atm

Solution: The atmospheric pressure is 752 mm Hg. What is the pressure (atm) of the enclosed gas when h = 36.0 cm?a) 1.463 atmb) 0.9954 atmc) 1.009 atmd) 1.271 atme) 0.9826 atm

Problem

The atmospheric pressure is 752 mm Hg. What is the pressure (atm) of the enclosed gas when h = 36.0 cm?

a) 1.463 atm

b) 0.9954 atm

c) 1.009 atm

d) 1.271 atm

e) 0.9826 atm

Solution

We’re being asked to determine the pressure of a gas (in atm) using an open-end manometer.

A manometer allows you to determine the pressure of a gas (Pgas) sample by using the atmospheric pressure (Patm) and the difference in the height of mercury (h).


Different conditions for an open-end manometer are illustrated below:


When Pgas is pushing the same force as Patm

Pgas=Patm



When Pgas is pushing harder than Patm

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