Diference between cm^3 and cm^-3

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Homework Help Overview

The discussion revolves around the difference between the units cm3 and cm-3, focusing on their respective meanings in terms of volume and concentration.

Discussion Character

  • Conceptual clarification

Approaches and Questions Raised

  • Participants explore the definitions of cm3 as a unit of volume and cm-3 as a unit of concentration, questioning the possibility of converting between the two.

Discussion Status

Some participants have provided clarifications regarding the dimensional differences between the two units, indicating that they serve different purposes and cannot be converted. Guidance has been offered on naming conventions for clarity.

Contextual Notes

There is an emphasis on understanding the dimensional analysis of the units involved, with a focus on their applications in different contexts.

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Homework Statement
I dont understand the difference
Relevant Equations
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Difference between cm^3 and cm^-3
 
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They are completely different units. The first is the unit of a volume, the second of a concentration (e.g., the number of particles per volume).
 
okay tanks
so i cannot convert cm^3 cm^-3
 
new90 said:
okay tanks
so i cannot convert cm^3 cm^-3
No. One has dimension length^3, the other dimension 1/length^3.
 
It might help if you call cm^3 "cubic centimeters" and cm^-3 "per cubic centimeter".
 

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