Chapter 11.8, Problem 66PP

When heated to $\text{350 °C at 0}\text{.950 atm}$ , ammonium nitrate decomposes to produce nitrogen, water, and oxygen gases.
   ${\text{2NH}}_{\text{4}}{\text{NO}}_3\left(S\right)\stackrel{\Delta }{\to }{\text{2N}}_{\text{2}}\left(g\right)+{\text{4H}}_{\text{2}}\text{O}\left(g\right)+{\text{O}}_{\text{2}}\left(g\right)$
a. How many liters of water vapor are produced when $\text{25}{\text{.8 g of NH}}_{\text{4}}{\text{NO}}_{\text{3}}$ decomposes?
b. How many grams of ${\text{NH}}_{\text{4}}{\text{NO}}_{\text{3}}$ are needed to produce 10.0 L of oxygen?