Converting gas particles to moles using Avogadro's number

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SUMMARY

The discussion focuses on converting gas particles to moles using Avogadro's number in the context of the ideal gas law (P = n(kb)T). The gas pressure in the photosphere varies with temperature and particle density, with specific values of 1.6x10^16, 1.0x10^17, and 1.5x10^17 gas particles per cubic centimeter at temperatures of 4500 K, 5800 K, and 7000 K, respectively. Participants emphasize the importance of Avogadro's number (6.022 x 10^23 particles/mol) for this conversion, which is essential for calculating the number of moles (n) in the ideal gas law.

PREREQUISITES
  • Understanding of the ideal gas law (P = n(kb)T)
  • Familiarity with Avogadro's number (6.022 x 10^23 particles/mol)
  • Basic knowledge of gas particle density and temperature relationships
  • Concept of moles in chemistry
NEXT STEPS
  • Learn how to apply Avogadro's number for converting particles to moles
  • Study the ideal gas law in more detail, including its applications
  • Explore the relationship between temperature, pressure, and gas density
  • Investigate the properties of the photosphere in astrophysics
USEFUL FOR

Students studying chemistry or astrophysics, educators teaching gas laws, and anyone interested in the behavior of gases under varying temperatures and pressures.

lmannoia
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Astronomy -- pressures

Homework Statement


The gas pressure of the photosphere changes substantially from its upper levels to its lower levels. Near the top of the photosphere and the temperature is about 4500 K and there are about 1.6x10^16 gas particles per cubic centimeter. In the middle the temperature is about 5800 K and there are about 1.0 x 10^17 gas particles per cubic centimeter. At the bottom of the photosphere the temperature is about 7000 K and there about about 1.5 x 10^17 gas particles per cubic centimeter. Using the ideal gas law (P = n(kb)T), compare the pressures of each of these layers and explain the reason for this trend.


Homework Equations





The Attempt at a Solution


Okay, how would you convert the number of gas particles per cubic centimeter into moles (for 'n' in the ideal gas law)? That's what I'm stuck on. Any help is appreciated!
 
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Ever heard about Avogadro's number?

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