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The zinc in a 1.343-g sample of a foot powder was precipitated as ZnNH 4PO4. Strong heating of the precipitate yielded 0.4089 g Zn2P2O7. Calculate the mass percent of zinc in the sample of foot powder.
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Our tutors have indicated that to solve this problem you will need to apply the Stoichiometry concept. You can view video lessons to learn Stoichiometry. Or if you need more Stoichiometry practice, you can also practice Stoichiometry practice problems.
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Our data indicates that this problem or a close variation was asked in Chemistry: An Atoms First Approach - Zumdahl 2nd Edition. You can also practice Chemistry: An Atoms First Approach - Zumdahl 2nd Edition practice problems.