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Objectives To observe the techniques involved to carry out the decomposition of a chemical, potassium chlorate, KClO3, quantitatively. To calculate the percentage of oxygen in potassium chlorate, KClO3, theoretically and experimentally. To verify the product of the decomposition reaction is potassium chloride, KCl. Submit prelab questions for Experiment 6 Submit Assignment 5 Have you finished the worksheet yet? Click here. Question 1: A 1990 US penny (zinc plated with a thin layer of copper) with a mass of 2.552 g contains 2.488 g of zinc. What is the mass percent of (a) copper and (b) zinc? Answer to Question 1: Mass of the penny = 2.552 g. (4 sig figs) Mass of zinc . . . → Read More: Lab: Experiment 6 Practice Questions |
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MapleTA unavailable on Friday – Assignment 6 is due Saturday, Feb 27 by 11:59 pm All the answers to the worksheets in preparation for next Thursday's test (Feb 25) are posted on the website. Are you keeping up with doing worksheets and trying practice problems? Remember to keep learning the polyatomic ions until you can name them, right the formulas with their correct charges. Hi, Class. Are you enjoying your studies? It's been two weeks since school started. Just a summary of what we've done. |
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