Answer :
The mass with volume and STP can be calculated by the ideal gas formula.
The ideal gas equation is given as follows :
P V = n R T
where ,
P = pressure of the gas in atm
V = volume of the gas in 22.4 L
R = gas constant = 0.082 atm L / mol K
T = temperature in K
n = moles
The STP mean the temperature and the pressure at standard conditions that is temperature is 273 K and the pressure is 1 atm. so first we calculate the mole of the gas at STP , wet
n = P V / R T
n = ( 1 × 22.4 ) / ( 0.082 × 273 )
n = 1 mole
Thus, the moles at STP condition is 1 mole, now, we can calculate the mass by using formula given as :
mass = moles × molar mass.
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