Question

On April 16, 1947, in Texas City, Texas, two cargo ships, the Grandcamp and the High Flyer, were each loaded with approximately 2000 tons of ammonium nitrate fertilizer. The Grandcamp caught fire and exploded, followed by the High Flyer. More than 600 people were killed and one-third of the city was destroyed. Considering a much smaller mass, how many N₂ molecules can be produced after the explosion of 4.12 kg of NH₄NO₃? (Molar mass of NH₄NO₃ is 80.06 g/mol.)

Answer 1

NH4NO3    gives 1N2      ( equation is NH4NO3 --> N2 + 2H2O + 1/2 O2)       

NH4NO3 moles = mass/ Molar mass

               = ( 4.12 x 1000 g) / ( 80.06 g/mol

         = 51.46 moles

N2 moles = 51.46

N2 moles = moles x avagadro number

        = 51.46 x 6.023 x 10^23

       = 3 x 10^ 25