Ch.3 - Chemical ReactionsWorksheetSee all chapters
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: Which of the following compounds has the highest mass percent of O?a. Mn2O3b. MnOc. Mn3O2d. MnO2


Which of the following compounds has the highest mass percent of O?

a. Mn2O3

b. MnO

c. Mn3O2

d. MnO2


We are asked which of the following compounds has the highest mass percent of O a. Mn2Ob. MnO c. Mn3Od. MnO2

To do that we’re going to use the mass percent formula shown below:

mass% O = mass of Omass of MnxOy x 100%

First, we need to get the atomic weights of each element Mn and O using the periodic table and then calculate its molar mass. Then compute for the mass % of O.

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