Problem: Silver oxide decomposes when heated:2 Ag2O(s) → 4 Ag(s) +  O2(g)If 5.76 g of Ag2O is heated and the O2 gas produced by the reaction is collected in an evacuated flask,what is the pressure of the O2 gas if the volume of the flask is 0.65 L and the gas temperature is 25 oC?

FREE Expert Solution

Step 1

$\mathbf{5}\mathbf{.}\mathbf{76}\mathbf{ }\cancel{\mathbf{g}\mathbf{ }{\mathbf{Ag}}_{\mathbf{2}}\mathbf{O}}\mathbf{ }\mathbf{\times }\frac{\mathbf{1}\mathbf{ }\cancel{\mathbf{mol}\mathbf{ }{\mathbf{Ag}}_{\mathbf{2}}\mathbf{O}}}{\mathbf{231}\mathbf{.}\mathbf{735}\mathbf{ }\cancel{\mathbf{g}\mathbf{ }{\mathbf{Ag}}_{\mathbf{2}}\mathbf{O}}}\mathbf{\times }\frac{\mathbf{1}\mathbf{ }\mathbf{mol}\mathbf{ }{\mathbf{O}}_{\mathbf{2}}}{\mathbf{2}\mathbf{ }\cancel{\mathbf{mol}\mathbf{ }{\mathbf{Ag}}_{\mathbf{2}}\mathbf{O}}}$ = 0.01243 mol O₂