Finding moles from volume? diatomic

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SUMMARY

To find the number of moles of a diatomic ideal gas from a given volume, temperature, and pressure, the ideal gas law must be applied. The equation n = N/V is insufficient without knowing the pressure of the gas. In this case, with a volume of 100 m3 and a temperature of 300 K, the pressure is a critical missing variable for accurate calculations. The diatomic nature of the gas does not affect the calculation at this stage.

PREREQUISITES
  • Understanding of the ideal gas law (PV = nRT)
  • Knowledge of the concepts of moles and molecular composition
  • Familiarity with temperature measurements in Kelvin
  • Basic grasp of pressure units and their significance in gas calculations
NEXT STEPS
  • Research the ideal gas law and its applications in non-STP conditions
  • Learn how to convert between different pressure units (e.g., atm, Pa)
  • Study the relationship between volume, temperature, and pressure in gas laws
  • Explore the properties of diatomic gases and their implications in calculations
USEFUL FOR

Students studying chemistry, particularly those tackling gas law problems, and anyone needing to understand the calculations involving moles of gases under varying conditions.

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Homework Statement


I'm just going to preface this by saying I know zilch about chemistry, I'm not even sure how I passed it the last time I took it, which was in grade eleven.

Is it possible for me to find moles of a gas with this information:
volume: 100 m^3 of air
The gas is a diatomic ideal gas
We are NOT at STP. The temp is 300 K.

Homework Equations



n = N/V


The Attempt at a Solution


I'm think diatomic means two... atoms... in a molecule? :P and i know
n = N/V, where N is the number of molecules. But I don't know the number of molecules. I'm not even sure this is possible, I've attempted to look it up on the net but most things seem to assume STP.
I apologize for this silly question. :(
 
Physics news on Phys.org
Volume and temperature are not enough, you need pressure as well and you have to use ideal gas equation. Whether gas is diatomic doesn't matter at this moment.
 

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