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What quantity of gas, in moles, is contained in 2.21L at STP?
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P=10^5 pa T= 25+273 K n=1 and R=8.314 m3pa.mol-1.K-1
around 0.1 mol
P=10^5 pa T= 25+273 K R=8.314 m3pa.mol-1.K-1 AND V=2.21*10^-3 m3 SO n=0.1
PV=nRT
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