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Problem Answer


(NH4)2S2O8

This compound is 12.3% nitrogen by mass. For additional practice of this skill, confirm that the percentage of oxygen in this coumpound is 56.1%.


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Calculate Stoichiometry Expression

Calculating Percent Composition


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Problem


Calculate the percentage of nitrogen and the percentage of oxygen in the compound with the following formula:


(NH4)2S2O8


Atomic Masses: N=14.0 H=1.00 S=32.1 O=16.0 amu

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