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A sample of mercury(II) oxide is placed in a 5.00 L evacuated container and heated until it decomposes entirely to mercury metal and oxygen gas. The container is then cooled to 25°C. One now finds that the gas pressure inside the container is 1.73 atm. What mass of mercury(II) oxide was originally placed into the container?
Answer
A. 45.6g
B. 153 g
C. 76.6 g
D. 1.51 g
E. 913 g

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Category:- Chemistry
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