Gram Molecular Mass vs Molar Mass: Explained

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Homework Help Overview

The discussion centers around the concepts of gram molecular mass and molar mass, specifically in relation to oxygen. Participants are exploring the definitions and differences between these two terms.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • The original poster questions the relationship between gram molecular mass and molar mass, noting a discrepancy in values for oxygen. Other participants clarify that the molecular mass refers to O2 as a molecule, while the molar mass pertains to a single oxygen atom.

Discussion Status

The discussion is ongoing, with participants providing clarifications about the molecular structure of oxygen and its implications for understanding mass definitions. There is a productive exchange of information, but no consensus has been reached regarding the original poster's confusion.

Contextual Notes

Participants are navigating the definitions and implications of molecular versus atomic mass, which may involve assumptions about the context in which these terms are used.

Ry122
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What is the difference between gram molecular mass and the molar mass?
My book says that the gram molecular mass of oxygen is 32 grams and the molar mass is 16. Since a mole is equal to the gram molecular mass shouldn't they be the same?
 
Physics news on Phys.org
molecular mass of oxygen as a molecule is 32 grams because it is O_2. The molar mass is 16 grams for oxygen atom.
 
What is O_2?
 
O_2 is a molecule consisting of two O atoms.
 

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