Chemistry Why Is ln(N) Around 50 for Various Chemical Compositions?

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The discussion centers on estimating the number of molecules (N) in a few grams of matter and explaining why ln(N) is approximately 50 across different chemical compositions. The equation M = m/N relates molecular mass (M) to the mass of the sample (m) and the number of molecules (N). Participants express confusion about the question and the calculations involved, particularly regarding the average molar mass of compounds with varying atomic compositions. The inquiry includes considerations of both the lightest and heaviest possible compounds made of a few atoms. Understanding these concepts is crucial for solving the problem effectively.
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Homework Statement



Estimate the number N of molecules in a few grams of matter. Explain why in that case ln (N) is of the order of 50 whatever the chemical composition.

Homework Equations



M = m/N

where M is the molecular mass

The Attempt at a Solution



I'm really unsure about the entire question. I have no idea what he's asking, but I might be over thinking it. I don't even know where to start.
 
Physics news on Phys.org
What is the average molar mass of a typical compound made of just a few atoms?

Say - 4 atoms. What is the molar mass of the lightest possible compound? Of the heaviest one?
 

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