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Unformatted text preview: What volume of air (1.00 atm, 27 C, 20.0% oxygen) is required to burn 1.00 L of ethanol (d = 0.789 g/L, M = 46.0 g/mol)? Collecting Gases over Water P gas of interest = P total- P H2O 1. O 2 is collected by bubbling through water. If T = 21 C and 250. mL is collected at P = 0.987 atm, how many moles of O 2 were produced? 2. If decomposed 0.833 g of KClO 3 , what was the percent yield of O 2 ? Online homework will be available by 5 pm; due 9 am. Friday....
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- Fall '07