Nitrous oxide (N 2 O) can be produced by thermal decomposition of ammonium nitrate: NH 4 NO 3 ( s ) → heat N 2 O ( g ) + 2 H2O ( l ) What volume of N2O( g ) collected over water at a total pressure of 94.0 atm and 22°C can be produced from thermal decomposition of 2.6 g NH4NO3? The vapour pressure of water at 22°C is 21 torr.

Calculate the standard enthalpy of formation of liquid methanol, ch3oh(l), using the following information: c(graphite) + o2 latex: \longrightarrow ⟶ co2(g) latex: \delta δ h° = –393.5 kj/mol h2(g) + o2 latex: \longrightarrow ⟶ h2o(l) latex: \delta δ h° = –285.8 kj/mol ch3oh(l) + o2(g) latex: \longrightarrow ⟶ co2(g) + 2h2o(l) latex: \delta δ h° = –726.4 kj/mol