Posted by **deepu** on Sunday, June 23, 2013 at 8:45am.

calculate the volume occupied by 5.25 gram of nitrogen at 26 degree Celsius and 74.2 cm of pressure

- maths -
**MathMate**, Sunday, June 23, 2013 at 10:03am
Assuming 74.2 cm of pressure refers to the mercury column.

Under standard temperature and pressure (273.15°K, 100 kPa=760.06 mmHg),

the gas constant is:

62.364 L mmHg K−1 mol−1

molecular mass of N2=2*14.0067=28.0134

So

volume occupied by 5.25 gram of nitrogen at 26 degree Celsius and 74.2 cm of pressure

=62.364/742*(273.15+26)*(5.25/28.0134)

=4.7 litres

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