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Chemistry / Chemistry 11 / Chapter 21 / Problem 76P

Chemistry | 11th Edition | ISBN: 9780073402680 | Authors: Raymond Chang

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Answer: As stated in the chapter, potassium superoxide

Chapter 21, Problem 76P

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QUESTION:

As stated in the chapter, potassium superoxide \(\left(\mathrm{KO}_{2}\right)\) is a useful source of oxygen employed in breathing equipment. Calculate the pressure at which oxygen gas stored at \(20^{\circ} \mathrm{C}\) would have the same density as the oxygen gas provided by \(\mathrm{KO}_{2}\). The density of \(\mathrm{KO}_{2}\) at \(20^{\circ} \mathrm{C}\) is \(2.15\mathrm{\ g}/\mathrm{cm}^3\).

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QUESTION:

As stated in the chapter, potassium superoxide \(\left(\mathrm{KO}_{2}\right)\) is a useful source of oxygen employed in breathing equipment. Calculate the pressure at which oxygen gas stored at \(20^{\circ} \mathrm{C}\) would have the same density as the oxygen gas provided by \(\mathrm{KO}_{2}\). The density of \(\mathrm{KO}_{2}\) at \(20^{\circ} \mathrm{C}\) is \(2.15\mathrm{\ g}/\mathrm{cm}^3\).

ANSWER:

Step 1 of 3

From the given, potassium superoxide reacts with water, and it evolves oxygen gas. The chemical reaction is as follows;

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