When solid NH4NO3 decomposes, a mixture of gases is obtained: 2 NH4NO3(s)  ⟶  4 H2O(g)  +  O2(g)  +  2 N2(g) In an experiment, 3.41 g of NH4NO3 decomposes completely in a rigid 3.25 L container. What is the total pressure in the container if the final temperature is 227 °C? give answer in atm and round to 3 sig figs

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