Calculating the number of moles of air

  • Thread starter Thread starter Dooh
  • Start date Start date
  • Tags Tags
    Air Moles
Click For Summary

Homework Help Overview

The discussion revolves around calculating the number of moles of air from a given mass, focusing on the concept of molar mass and its determination based on the composition of air.

Discussion Character

  • Exploratory, Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants explore how to calculate the number of moles using the formula n = m / molar mass, questioning the definition and determination of molar mass for air.

Discussion Status

Some participants have provided guidance on determining the molar mass of air and its components, while others are seeking clarification on how to find this value and its implications for calculating moles.

Contextual Notes

There is an emphasis on understanding the composition of air and the periodic table as a resource for finding the molar masses of its constituent gases.

Dooh
Messages
41
Reaction score
1
BY only given the mass of air in a certain sample, how would one calculate the number of moles of air in the sample?

n = m / mass per mole

however, what's mass per mole? and how would you solve for it? thanks.
 
Physics news on Phys.org
Determine the molar mass of air, then use mass/molar mass to figure out the moles of air, then utilize that as you wish.
 
yea, that's exactly what I am trying to figure out. How do you find the molar mass of air?
 
To solve for mass per mole (a.k.a molar mass) you need to know the composition of the air. What is air made out of? How would you find the molar mass of hydrogen, oxygen, or carbon? (hint: it's all in the periodic table).
 

Similar threads

  • · Replies 1 ·
Replies
1
Views
1K
  • · Replies 5 ·
Replies
5
Views
3K
  • · Replies 2 ·
Replies
2
Views
1K
Replies
11
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 10 ·
Replies
10
Views
6K
  • · Replies 2 ·
Replies
2
Views
3K
  • · Replies 7 ·
Replies
7
Views
3K
Replies
6
Views
3K