Simple Gas mass/volume Question

  • Thread starter Thread starter dcl
  • Start date Start date
  • Tags Tags
    Gas
Click For Summary

Discussion Overview

The discussion revolves around a calculation involving the mass of carbon monoxide in exhaust gas, specifically focusing on the interpretation of given data and the conversion from volume to mass. The context includes basic gas laws and molar volume concepts.

Discussion Character

  • Homework-related
  • Technical explanation

Main Points Raised

  • One participant presents a problem involving the calculation of mass from the volume percentage of carbon monoxide in exhaust gas.
  • Another participant questions the definition of SLC and suggests that it may refer to STP (Standard Temperature and Pressure).
  • A third participant clarifies the definitions of STP and NTP (Normal Temperature and Pressure), noting the difference in molar volumes associated with each.
  • There is uncertainty regarding the term SLC, with one participant suggesting it might be a typo.
  • Participants discuss the conversion process from volume to moles and then to mass, indicating a need for clarity on the definitions and values used in the calculations.
  • Areas of Agreement / Disagreement

    Participants express uncertainty about the term SLC and its implications for the calculation. There is no consensus on the correct interpretation of SLC, and the discussion remains unresolved regarding the appropriate molar volume to use.

    Contextual Notes

    There are limitations regarding the assumptions made about the definitions of SLC, STP, and NTP, as well as the potential typo in the original question. The discussion does not resolve the correct molar volume to apply in the calculation.

dcl
Messages
54
Reaction score
0
The exhaust gas from a car is tested and found to contain 8% by volume of carbon monoxide. If the molar volume of CO at SLC = 24.4 L/mol, what is the mass of carbon monoxide in 1L of exhaust gas?

I'm very new to these calculations and am unsure how to approach it.
 
Chemistry news on Phys.org
What is SLC? Anyways, you want to know the mass of carbon monoxide in 1L of exhaust gas. You know the volume in 1L of exhaust gas, that's 8% of 1L, or 0.08L. Now, what can we use to go from volume to mass? Well, I think you can see how to get from volume to number of moles (look at what's given in the question). And you know how to go from number of moles to mass (look at your Periodic Table).
 
by SLC do u mean STP(Standard Temp Pressure)?
 
Yer probably...
Might be a type in the question.
 
STP is 0C (273K), 1 atm. The molar volume at STP is 22.4 L, not 24.4 L

NTP is 25C (298K), 1 atm. The molar volume at NTP (Normal temp. & press.) is 24.4L

Never heard of SLC before - other than as an abbreviation for Salt Lake City.
 

Similar threads

  • · Replies 6 ·
Replies
6
Views
4K
  • · Replies 109 ·
4
Replies
109
Views
10K
  • · Replies 3 ·
Replies
3
Views
3K
  • · Replies 131 ·
5
Replies
131
Views
11K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 19 ·
Replies
19
Views
11K
Replies
25
Views
5K
  • · Replies 2 ·
Replies
2
Views
2K
Replies
3
Views
2K
  • · Replies 14 ·
Replies
14
Views
4K