(Solved): 1.1 The fertilizer industry, ammonium sulfate is produced by reacting ammonia with sulfuric acid. ...

1.1 The fertilizer industry, ammonium sulfate is produced by reacting ammonia with sulfuric acid. Determine the volume (in L) of ammonia sulphate needed to produce \( 214.000 \mathrm{~kg} \) ammonium sulfate \( \left(\mathrm{NH}_{4}\right)_{2} \mathrm{SO}_{4}(132.14 \mathrm{~g} / \mathrm{mol}) \) at \( 24.0^{\circ} \mathrm{C} \) and \( 100.0 \mathrm{In} \) kpa (5) 1.2 A sample of an unknown gas effuses in \( 11.1 \mathrm{~min} \). An equal volume of \( \mathrm{H} 2 \) in the same apparatus at the same temperature and pressure effuses in \( 2.42 \mathrm{~min} \). Determine the molar mass of the unknown gas (4) 1.3 Using Van der Waals equation, calculate the temperature of \( 20.0 \) mole of helium in a \( 25.0 \) liter cylinder at 120 atmosphere pressure. [Data - Van der Waals constants for helium: 1.4 Explain the significance of the two Van Der waals coefficients a and \( \mathrm{b}(3) \) 1.5 A mixture containing \( 0.834 \) moles \( \mathrm{He}(\mathrm{g}) \) and \( 0.206 \) moles \( \mathrm{Ar}(\mathrm{g}) \) is confined in a vessel at \( 50^{\circ} \mathrm{C} \). Calculate the partial pressures of helium and Argon given that the total pressure of the vessel is \( 3.5 \mathrm{~atm} \) (4)