Measuring the weight of gas in an inflated balloon

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Discussion Overview

The discussion revolves around methods for measuring the weight of gas in an inflated balloon, specifically focusing on the mathematical equations and principles that could be applied to determine this weight. The conversation includes considerations of the gas composition and comparisons to other gas measurement methods.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification, Homework-related

Main Points Raised

  • One participant suggests that to calculate the mass of the gas, factors such as the volume of the balloon, the density of ambient air, the mass of the deflated balloon, and the measured mass of the balloon in the atmosphere need to be considered.
  • Another participant questions whether the goal is to determine the weight or the mass of the gas in the balloon, indicating a potential distinction between these concepts.
  • There is a request for a mathematical equation to calculate the weight of the gas in the balloon, highlighting a need for clarity on the method.
  • Participants note that the type of gas (in this case, air) will affect the results, emphasizing the importance of gas composition in weight calculations.
  • One participant provides an analogy to measuring the weight of gas in a cylinder, suggesting that similar methods could be applied to the balloon, but seeks confirmation on the feasibility of this approach.
  • There are repeated requests for mathematical equations derived for calculating the weight of the gas in the inflated balloon, indicating an ongoing search for a concrete solution.

Areas of Agreement / Disagreement

Participants express a common interest in finding a method to measure the weight of gas in an inflated balloon, but there is no consensus on a specific method or mathematical equation. Multiple viewpoints and questions remain unresolved.

Contextual Notes

The discussion lacks specific mathematical derivations or established methods for calculating the weight of gas in an inflated balloon, and assumptions regarding gas density and measurement techniques are not fully explored.

prashantakerkar
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What could be the method for measuring weight of gas in inflated balloon?

Thanks & Regards,
Prashant S Akerkar
 
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To calculate the mass of the gas in the balloon, you will need to know:
1) V: The volume of the balloon.
2) A: The density of the ambient air (roughly 1.24 Kg/M^3)
3) B: The mass of the balloon itself (when deflated).
4) M: The mass as of the balloon as measured (positive or negative) as it floats in the atmosphere.

So your tare will be the volume of B-VA. That should be subtracted from the weight measurement.
 
prashantakerkar said:
What could be the method for measuring weight of gas in inflated balloon?

Thanks & Regards,
Prashant S Akerkar

Are you trying to determine the weight of the gas in the balloon or its mass?
 
Thanks.

Weight of gas in the balloon.

Any mathematical equation derived for the same?

Thanks & Regards,
Prashant S Akerkar
 
prashantakerkar said:
Weight of gas in the balloon.
what is the gas ?
that will directly affect the results
 
Thanks.

The air which we inflate the balloon with pump or mouth.

Air constitutes 80% Nitrogen, 18% Oxygen, some % of Carbon dioxide, inert gases.

How we can calculate the weight of the gas (air) for the inflated balloon?

Any mathematical equation derived for the same?

Thanks & Regards,
Prashant S Akerkar
 
Thanks.

To illustrate,

http://www.ekataweighingmachines.com/gas.html

Measuring the weight of the gas cylinder before inserting the Lpg gas and then measuring the weight of the gas cylinder after the gas is filled in the cylinder.

Now how to measure the weight of the gas (air) filled up in the inflated balloon by air pump or by mouth?

Thanks & Regards,
Prashant S Akerkar
 
Thanks.

The above is a example of LPG gas filled in cylinder.
Cylinder has weight calculated before inserting LPG gas.
Cylinders total weight is calculated after LPG gas is inserted.

Similarly can we calculate the weight of balloon before the air (gas) is added?

Similarly can we calculate the weight of balloon after the air (gas) is added?

What will be the weight of the gas filled in the inflated balloon?

Any mathematical equation derived for the same?

Thanks & Regards,
Prashant S Akerkar
 

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