8. Calculate the percent composition by mass of all elements in ammonium nitrate. 9. A certain compound is 52.2% carbon, 13.0% hydrogen and 34.8% oxygen. Find the empirical formula of the compound. 10. A researcher exposed 11.89g of iron to a stream of oxygen until it reacts to produce 16.99g of a pure iron oxide compound. What is the empirical formula of the product? 11. An antifreeze and coolant widely used in automobile engines is 38.7% carbon, 9.7% hydrogen and 51.6% oxygen. Its molar mass is 62.0 g/mol. What is the molecular formula of the compound?

8. Calculate the percent composition by mass of all elements in ammonium nitrate. 9. A certain compound is 52.2% carbon, 13.0% hydrogen and 34.8% oxygen. Find the empirical formula of the compound. 10. A researcher exposed 11.89g of iron to a stream of oxygen until it reacts to produce 16.99g of a pure iron oxide compound. What is the empirical formula of the product? 11. An antifreeze and coolant widely used in automobile engines is 38.7% carbon, 9.7% hydrogen and 51.6% oxygen. Its molar mass is 62.0 g/mol. What is the molecular formula of the compound?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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