State oxide decomposes on heating to elemental mercury

Reference no: EM13184304

In 1774, Joseph Priestley discovered that mercury(II) oxide decomposes on heating to elemental mercury and a gas, later called oxygen. If 56.0 g of mercury(II) oxide is heated and 26.0 % of it decomposes, what is the pressure of oxygen gas in a 621 mL container at 25oC?
A. 1.32 atm

B. 10.1 atm

C. 5.17 atm

D. 2.64 atm

E. 5.30 atm

Reference no: EM13184304

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