In different containers, you have 9.0 g of water vapor(assume this is possible), 16 g of HC4, and 44.0 g of carbon dioxide, all under standard conditions of temperature and pressure. Calculate the volumes and tell which occupies the smallest volume.

Solution Preview

Under standard temperature and pressure (STP), 1 mole of an ideal gas occupies 22.4 L. This is called the "standard molar volume." Remember this number. It will come in handy.

Therefore, in order to find out the volume of each of the gases, all we have to do is convert the gram amount into moles, and then convert the moles into volume using ...

Solution Summary

This solution calculates the volumes of different containers of water vapor at STP and identifies which one occupies the smallest volume.

... We can calculate n=PV/RT=0.98*0.115/(0.082*339.45)=0.004(mol) Therefore the molecular weight of the gas is 0.418/0.004=103 ... The volume can be calculated V=nRT ...

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