Calculating Maximum Air and Oxygen Amount in a Breathing Apparatus Cylinder?

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To calculate the maximum amount of air in a breathing apparatus cylinder with a pressure of 204 bars and a water volume of 8 liters, the correct approach involves understanding gas laws rather than simply multiplying pressure by volume. The initial calculation of 204 bar x 8 liters is incorrect, as it mixes units improperly. The discussion emphasizes the need to clarify the units used to measure gases, which typically involve moles or volume at standard conditions. Participants highlight the importance of following forum rules that discourage direct solutions but encourage guidance to help solve the problem. Understanding the relationship between pressure, volume, and gas laws is crucial for accurate calculations.
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Homework Statement



A breathing apparatus cylinder has a pressure of 204 bars and a water volume of 8 litres. Calculate the maximum amount of air in this cylinder at this pressure?

Homework Equations





The Attempt at a Solution



204 bar x 8 litres = 1632 litres?
 
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That formula makes no sense. The left hand side is in bar x litres, the right hand side is in just litres.

Besides, in what units do we really measure "amount" of gases (or any other substance)?
 
Hi voko, thanks for your reply i know it makes no sense hence the ? At the end. The question posted is word for word. Do you have any sloutions for the problem? thanks
 
We don't give you solutions in the forum. It is against the rules. We try to help you figure it out. My question in #2 is a hint for you.
 
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