Calculating Mass and Height of Ideal Gas in a Vertical Tank

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    Mass Pv=nrt
AI Thread Summary
The discussion revolves around calculating the mass of a piston and the height of an ideal gas column in a vertical cylindrical tank. The tank contains 1.75 moles of gas at a pressure of 1.00 atm and a temperature of 20.0°C, with a radius of 10.0 cm. The height of the gas column supporting the piston has been correctly calculated as 1.34 meters. However, there is confusion regarding how to determine the mass of the piston using the ideal gas law equation, pv=nrt, due to a lack of provided units. Clarification on unit conversion and application of the gas law is necessary for solving the mass of the piston.
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Homework Statement



A vertical cylindrical tank contains 1.75 of an ideal gas under a pressure of 1.00 at 20.0. The round part of the tank has a radius of 10.0 , and the gas is supporting a piston that can move up and down in the cylinder without friction.
What is the mass of this piston?
How tall is the column of gas that is supporting the piston?

Homework Equations



pv=nrt

The Attempt at a Solution

for the 2nd question i got h=1.34m and that answer is correct. I have no clue how to find the mass of the piston using pv=nrt.
 
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I see your problem. You gave no units to work with.
 

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