Percent_composition_wksht

Percent_composition_wksht - PERCENT COMPOSITION WORKSHEET -...

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PERCENT COMPOSITION WORKSHEET Find the percent compositions (rounded to the nearest tenth of a percent) of all of the elements in the following compounds: 1) CrF 3 Cr: ___________ F: ___________ 2) Na 3 PO 4 Na: ___________ P: ___________ O: ___________ 3) KCN K: ___________ C: ___________ N: ___________ 4) PI 3 P: ___________ I: ___________
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Unformatted text preview: PERCENT COMPOSITION WORKSHEET - SOLUTIONS Find the percent compositions (rounded to the nearest tenth of a percent) of all of the elements in the following compounds: Hint: Find the molecular weight of the compound then divide the total mass of each element by it and multiply by 100. 1) CrF 3 Cr: _47.7% _____ F: _52.3% _____ 2) Na 3 PO 4 Na: _42.1% _____ P: _18.9% _____ O: _39.0% _____ 3) KCN K: _60.0% _____ C: _18.5% _____ N: _21.5% _____ 4) PI 3 P: _7.5% ______ I: _92.5% _____...
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Percent_composition_wksht - PERCENT COMPOSITION WORKSHEET -...

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