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Assuming it acts as an ideal gas then you use the equation PV=nRT

where

P=pressure (101.325 kPa at STP)

V = volume 444 L (given)

n = number of mols

R = gas constant, 8.314472 L kPa K-1mol-1

T = temperature 273.15 K at STP

I got 19.81 mols.

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15y ago

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