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E) A chemist places 20.45 grams of Al with excess HCl in a closed system, where the reaction proceeds according to the following unbalanced reaction. a) Balance the reaction. b) Determine the maximum mass, in grams, of hydrogen gas that could be produced in this reaction. c) If 0.378 g of hydrogen gas was isolated from the reaction, what is the % yield for this reaction? d) How much HCl was used in the procedure described above? F) Humulone, C21H30O5, is one of the flavor components that give a bitter taste to the hops used in making beer. a) What is the molar mass of Humulone? b) How many moles of Humulone are in 100.275g of Humulone? c) What is the mass of 0.600 mol of Humulone? d) How many atoms of hydrogen are in 1.00 X 10-6 grams of Humulone. e) What is the mass in g of one molecule of Humulone? G) An unknown compound contains 30.0 %Fe, 64.5 %C, and 5.5 %H by mass. Determine the empirical formula for this material
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