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Chapter 22: Problem 27

Without per frming detailed calculations, determine which of the following compounds has the greatest percent oxygen by mass: dinitrogen tetroxide, aluminum oxide, tetraphosphorus hexoxide, or carbon dioxide.

Short Answer

Expert verified
The compound with the greatest percent oxygen by mass among the provided compounds is Carbon Dioxide (\(CO_2\)).

Step by step solution

01

Calculate Oxygen Molecule Proportion

Calculate the proportion of oxygen molecules in each given compound. Dinitrogen tetroxide (\(N_2O_4\)) has 4 out of 6 total atoms as oxygen; aluminum oxide (\(Al_2O_3\)) has 3 out of 5; tetraphosphorus hexoxide (\(P_4O_6\)) has 6 out of 10; carbon dioxide (\(CO_2\)) has 2 out of 3.
02

Compare the Molar Weights and Proportions

Next, you compare the molar weights and proportions. Although \(N_2O_4\) and \(P_4O_6\) have more oxygen atoms, you see that they have larger molar mass due to Nitrogen and Phosphorus. Aluminum oxide (\(Al_2O_3\)) also has sufficient Oxygen Molecules but Aluminum carries a larger molar mass. Carbon Dioxide (\(CO_2\)), on the other hand, only has Oxygen and Carbon contributing to its molar mass. In addition, two out of three atoms in \(CO_2\) are oxygen, which is the highest proportion amongst the four compounds. Thus, without performing detailed calculations, one would suspect that \(CO_2\) has the greatest percentage of Oxygen by Mass.
03

Final Conclusion

So, if we are considering the percentage by mass, Carbon Dioxide should have the largest, due to its low weight and high proportion of Oxygen.

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Most popular questions from this chapter

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