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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
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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: Hydrogen produced from a hydrolysis reaction was collected over water and the following data was compiled. Calculate the moles of hydrogen gas produced by the reaction. 

Solution: Hydrogen produced from a hydrolysis reaction was collected over water and the following data was compiled. Calculate the moles of hydrogen gas produced by the reaction. 

Problem

Hydrogen produced from a hydrolysis reaction was collected over water and the following data was compiled. 

Calculate the moles of hydrogen gas produced by the reaction. 

Solution

We’re being asked to calculate the number of moles of the hydrogen gas produced from a hydrolysis reaction that is collected over water.

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

Hydrogen gas → H2(g)

We’re going to calculate the amount of hydrogen gas in moles using the ideal gas equation.

PV=nRT

P = pressure, atm
V = volume, L
n = moles, mol
R = gas constant = 0.08206 (L·atm)/(mol·K)
T = temperature, K


Let's first calculate the Partial Pressure of hydrogen gas:

Given:            Total Pressure (Ptotal) = 739 mmHg

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