Textbook Problem

Nitrous oxide (N₂O) can be produced by thermal decomposition of ammonium nitrate:

${\text{NH}}_{\text{4}}{\text{NO}}_{\text{3}}\left(s\right)\stackrel{\text{heat}}{\to }{\text{N}}_{\text{2}}\text{O}\left(g\right)+2{\text{H}}_{\text{2}}\text{O}\left(l\right)$

What volume of N₂O(g) collected over water at a total pressure of 94.0 kPa and 22°C can be produced from thermal decomposition of 8.68 g NH₄,NO₃? The vapor pressure of water at 22°C is 21 torr.