Calculating Volume of 12g Carbon Cube

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Homework Help Overview

The discussion revolves around calculating the volume of a 12g carbon cube, with a focus on the relationship between atomic distance and the number of atoms in the cube. The subject area includes concepts from chemistry and solid-state physics.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants are exploring the calculation of volume based on the number of carbon atoms and their spacing. Questions are raised about the use of Avogadro's number and whether a cube root is necessary to determine the number of atoms along an edge.

Discussion Status

The discussion is active, with participants questioning the initial calculations and suggesting different approaches. There is no explicit consensus, but various interpretations of the problem are being explored.

Contextual Notes

Some participants express uncertainty about the calculations and the assumptions made regarding atomic spacing and the application of Avogadro's number.

peripatein
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Hello,

If the distance between carbon atoms is given as 3A, will a 12 gr carbon cube have a volume of (6.022E23)*(27E-24)cm^3?
 
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wouldn't you need to take the cube root of avogadros number to determine how many carbon atoms are on an edge?
 
peripatein said:
Hello,

If the distance between carbon atoms is given as 3A, will a 12 gr carbon cube have a volume of (6.022E23)*(27E-24)cm^3?
Doesn't seem quite right. Show how you get the 6.022E23.
 
Avogadro's number. Wouldn't that be the right way to calculate the volume?
 
peripatein said:
Avogadro's number. Wouldn't that be the right way to calculate the volume?
OK, yes. I came at it a slightly different way and got a different answer, but I must have made a mistake.
 

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