Question

Calculate the moles of Hydrogen present in a 500 cm' sample of hydrogen gas at a pressure of 760
of Hg and 27°C​

Answer 1

500 cm

3

=0.5 L,760 mm of Hg=1 atm.

Now apply the gas equation, n=

RT

PV

n=

0.0821×300

1×0.5

⟹n=2.03×10

−2

mol