molar volume of hydrogen gas scientific paper.pdf -...

Measuring the volume of 1 mole of Hydrogen Gas at STP
44943 period 1
Introduction
In this experiment the group investigated the volume that one mole of hydrogen gas
occupies at STP. This is being studied because the class needs to apply knowledge about moles
and standard temperature and pressure. The class has covered what standard temperature and
pressure is 760 mm Hg and standard temperature is 273 K. The group’s hypothesis is that the gas
will be slightly above 22.4 L/mol, because Colorado is above sea level, and the ice bath most
likely will not be at exactly 0 degrees Celsius. Both of these will affect the volume of the gas.
The group will use a pipet to add hydrogen chloride into the graduated cylinder, cover it with
parafilm, poke a hole, and invert the cylinder. Then the group will read the volume of the gas,
pour the contents down the sink, and repeat for the other piece of magnesium. In this experiment
the independent variable is various amounts of magnesium pieces (with hydrogen chloride), and