Question
Sun February 20, 2011 By: Krishna Ravichander

The density of gas is found to be 1.56g/litre at 745 mm pressure and 35 degree celsius calculate the molecular mass of the gas

Expert Reply
Mon February 21, 2011
Dear Student
 
d = P x MW / (R x T)
 
MW = d x R x T / P
 
 = (1.56 g/l x 0.08211 atm per K per mol x 308.15 K )/ 0.980 atm
 = 39.447408/ 0.980
40.2524571
 
 
 
We hope that clarifies your query.
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