# How many mols of nitrogen gas are contained in a #"8.349 L"# container held at #"200.6 torr"# and #64^@ "C"#?

##### 1 Answer

The Good Chemist thinks for a moment, pondering why the volume

#PV = nRT#

He pulls out his trusty pencil and pocket calculator, and performs the following calculation, perhaps rashly assuming that nitrogen gas is ideal, disregarding its identity.

Too lazy to look up the universal gas constant in units of

#color(blue)(n) ~~ (PV)/(RT)#

#= ((2.006 xx 10^2 "torr" xx "1 atm"/"760 torr")("8.349 L"))/(("0.082057 L"cdot"atm/mol"cdot"K")(64 + "273.15 K"))#

#=# #color(blue)("0.080 mols ideal gas")#