Problem Answer

The percentage analysis leads to the molar ratio: 1.47 Cu : 0.489 N. This molar ratio reduces to the integer ratio of the formula: Cu3N.


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Calculate Stoichiometry Expression

Calculating Empirical Formula


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Problem


Qualitative analysis indicates that a certain chemical compound contains only the elements copper and nitrogen. A quantitative analysis of the compound reveals that the compound contains 93.2 percent copper. What is the empirical formula of this compound? Atomic Masses: Cu=63.5 N=14.0 amu.

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