Editing HomeworkForSection3
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A. Read Sections 8.8 to 8.10 B. Do the following problems: 1. (After looking at #10, 11 on pg 190 - 191) Find the percentage composition of Iron oxide. A sample has 28 g iron and 12 g oxygen. 2. Find the percentage composition of a sample of a compound containing 53g Na and 37g O. 3. (After looking at #12, 13, 14 on pg 192, 193, 194)A 39g sample of a gas contains 18g carbon and 21g nitrogen. What is the empirical formula? 4. (After looking at #15 pg 195) An unknown compound decomposes to produce 1.134g of solid iodine (I<sub>2</sub>) and 100 cm<sup>3</sup> of hydrogen gas at standard temperature and pressure. What is the empirical formula of the compound?
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