Nitric acid, a very important industrial chemical, is made by dissolving the gas nitrogen dioxide (no2) in water. calculate the moles of gas produced in 2 l volume container, 747 torr and 50 ºc if the gas behaves as ideal:

  The  moles of  gas produced    is  0.0742  moles

   calculation

The   moles  of a gas is calculated using  ideal  gas equation

that is  Pv=nRT

where,  P(pressure)= 747  torr

              V(volume) = 2L

             n(  number of  moles)=?

             R( gas constant) =  62.364 L.torr/mol .K

             T( temperature)= 50°C  into kelvin = 50 + 273  =323K

make n the subject  of the formula by  dividing  both side of equation by RT

n= PV/RT

n=[ (747  torr x 2L)  /( 62.364 L.torr/Mol.K  x 323 K)] =0.0742  moles