(Solved): Q5. When 150g of liquid (CH3)2N2H2 (ethylenediamine) reacts with an excess of liqui ...

Q5. When $$150\mathrm{g}$$ of liquid $${\left({\mathrm{CH}}_3\right)}_2{\mathrm{N}}_2{\mathrm{H}}_2$$ (ethylenediamine) reacts with an excess of liquid $${\mathrm{N}}_2{\mathrm{O}}_4$$ (dinitrogen tetroxide) in a $$250\mathrm{L}$$ flask at $$27^{?}\mathrm{C}$$, produces a mixture of $${\mathrm{CO}}_2,{\mathrm{N}}_2$$ and $${\mathrm{H}}_2\mathrm{O}$$ gases as shown in the reaction below. Calculate the partial pressure of the $${\mathrm{N}}_2$$ gas only. A) $$0.74\mathrm{atm}$$ $${\left({\mathrm{CH}}_3\right)}_2{\mathrm{N}}_2{\mathrm{H}}_2(l)+2{\mathrm{N}}_2{\mathrm{O}}_4(l)?2{\mathrm{CO}}_2(\mathrm{g})+3{\mathrm{N}}_2(\mathrm{g})+4{\mathrm{H}}_2\mathrm{O}(\mathrm{g})$$ B) $$2.3\mathrm{atm}$$ C) $$0.50\mathrm{atm}$$ D) $$1.0\mathrm{atm}$$ E) $$0.25\mathrm{atm}$$