Editing Percent Composition Homework
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Answer the following problems showing all work.<br> <br> 1. An 8.20 gram piece of magnesium combines completely 5.40 grams of oxygen to form a compound. What is the percent composition of this compound?<br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> 2. What is the percent composition of sodium phosphate, Na<sub>3</sub><nowiki>(PO</nowiki><sub>4</sub>)<sub>1</sub>?<br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> 3. A 42.5 gram sample of a compound composed of carbon and sulfur was found to have 17.8 grams of carbon. What is the percent composition of this compound.<br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> 4. What is the percent composition of H<sub>2</sub>S<sub>1</sub>?<br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> Answer:<br> 1) 60.3% Mg, 39.7% O<br> 2) 42.1% Na, 18.9% P, 39.0% O<br> 3) 41.9% C, 58.1% S<br> 4) 94.1% S, 5.9% H<br>
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