What is the typical calorie content of one serving of alcohol
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Different types of alcoholic beverages (beer, wine, spirits) have varying calorie contents. Show more…
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"about how many calories are in one serving (14-17 grams) of alcohol?"
Madhur L.
One of the best-selling light, or low-calorie, beers is $4.2 \%$ alcohol by volume and a 355 -mL serving contains 110 Calories; remember: 1 Calorie $=1000 \mathrm{cal}=1 \mathrm{kcal} .$ To estimate the percentage of Calories that comes from the alcohol, consider the following questions. (a) Write a balanced chemical equation for the reaction of ethanol, $\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH},$ with oxygen to make carbon dioxide and water. (b) Use enthalpies of formation in Appendix $\mathrm{C}$ to determine $\Delta H$ for this reaction. $(\mathbf{c})$ If $4.2 \%$ of the total volume is ethanol and the density of ethanol is $0.789 \mathrm{~g} / \mathrm{mL},$ what mass of ethanol does a $355-\mathrm{mL}$ serving of light beer contain? (d) How many Calories are released by the metabolism of ethanol, the reaction from part (a)? (e) What percentage of the 110 Calories comes from the ethanol?
One of the best-selling light, or low-calorie, beers is 4.2$\%$ 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. (a) Write a balanced chemical equation for the reaction of ethanol, $\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}$ , with oxygen to make carbon dioxide and water. (b) Use enthalpies of formation in Appendix $\mathrm{C}$ to determine $\Delta H$ for this reaction. $(\mathbf{c})$ If 4.2$\%$ of the total volume is ethanol and the density of ethanol is $0.789 \mathrm{g} / \mathrm{mL},$ what mass of ethanol does a 12 - oz serving of light beer contain? (\boldsymbol{d} ) How many Calories are released by the metabolism of ethanol, the reaction from part (a)? (e) What percentage of the 110 Calories comes from the ethanol?
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