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 hydrogen gas formed in a chemical reaction is collected over water at 30.0 °C at a total pressure of 732 mm Hg.a. What is the partial pressure of the hydrogen gas collected in this way?b. If the total volume of gas collected is 722 mL, what mass of hydrogen gas is collected? 

Solution: The hydrogen gas formed in a chemical reaction is collected over water at 30.0 °C at a total pressure of 732 mm Hg.a. What is the partial pressure of the hydrogen gas collected in this way?b. If the t

Problem

The hydrogen gas formed in a chemical reaction is collected over water at 30.0 °C at a total pressure of 732 mm Hg.

a. What is the partial pressure of the hydrogen gas collected in this way?

b. If the total volume of gas collected is 722 mL, what mass of hydrogen gas is collected?

 

Solution

We’re being asked to find the partial pressure and the mass of the hydrogen gas produced from a chemical reaction that is collected over water.

Hydrogen gas is the natural form of hydrogen and it is a diatomic molecule.

Hydrogen gas → H2(g)


(a) Partial Pressure of hydrogen gas

Given:            Total Pressure (Ptotal) = 732 mmHg


Dalton’s Law states that the total pressure inside a container is obtained by adding all the partial pressures of each non-reacting gas

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