Ch.2 - Atoms & ElementsSee 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: If 4.05 x 1023 molecules of a substance have a mass of 86.2 g, what is the molar mass of the substance? A)  128 g/mol B)  3.49 x 1025 g/mol                                    C)  2.13 x 1022 g/mol D)  4.70 x 1021 g/mol           E)  58.0 g/mol

Problem

If 4.05 x 1023 molecules of a substance have a mass of 86.2 g, what is the molar mass of the substance?

A)  128 g/mol

B)  3.49 x 1025 g/mol                                   

C)  2.13 x 1022 g/mol

D)  4.70 x 1021 g/mol          

E)  58.0 g/mol