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    helium is placed in a balloon. how many moles of helium are required in the balloon for it to occupy 10 litres at a pressure of 7 atmosphere and a temperature of 25.0 degrees
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    (Original post by 1988graciebarra)
    helium is placed in a balloon. how many moles of helium are required in the balloon for it to occupy 10 litres at a pressure of 7 atmosphere and a temperature of 25.0 degrees
    PV = nRT
 
 
 
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