Unformatted text preview: 25 oxygen atoms? 10. How many grams of silver sulfide produce 3.57 X 10-1 moles of sulfur? 11. What is the mass percent of xenon in xenon tetrafluoride? 12. What is the empirical formula of a compound that has the following mass percentages: C 20.33%, H 8.53%, N 71.14%. 13. How many moles of carbon are in 3.54 mol of zinc acetate? 14. If you consume 3.5 g of sodium chloride and 4.9 g of sodium bicarbonate, how many total milligrams of sodium did you consume? 15. A gold ore has a mass percent of 0.44 % pure gold. To obtain $200.00 worth of pure gold, how many grams of pure gold do you need? (Cost of gold is $418.00/troy oz, 14.6 troy oz = 454 g of gold) 16. Which is heavier: 0.25 mol of silver atoms or 0.25 mol of platinum atoms?...
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This note was uploaded on 02/05/2011 for the course CHE M 100 taught by Professor Palmer during the Spring '09 term at CSU Northridge.
- Spring '09