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One of the best-selling light, or low-calorie, beers is 4.7% alcohol by volume and a 12-oz serving contains 110 Calories; remember: 1 Calorie = 1000
One of the best-selling light, or low-calorie, beers is 4.7% alcohol by volume and a 12-oz serving contains 110 Calories; remember: 1 Calorie = 1000 cal = 1 kcal. To estimate the percentage of Calories that comes from the alcohol, consider the following questions. Part A Write a balanced chemical equation for the reaction of ethanol, C2H5OH, with oxygen to make carbon dioxide and water. Express your answer as a chemical formula. Include the phases of state. ? C, H, OH(1)+302 (g)2CO2 (g) + 3H, O(1) A chemical reaction does not occur for this question. Phases (states) should be entered in lowercase. No credit lost. Try again. Part C If 4.7 % of the total volume is ethanol and the density of ethanol is 0.789 g/mL, what mass of ethanol does a 12-oz serving of light beer contain? Express your answer in grams to 2 significant figures. ? Part D How many Calories are released by the metabolism of ethanol, the reaction from Part A? Express your answer in calories to 2 significant figures. ) ? Cal v Part E What percentage of the 110 Calories comes from the ethanol? Express your answer as a percent to 2 significant figures. ) ? 4.0 % Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining
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