9. Challenge: The alcohol content of a fermented beverage has a maximum of 14.5 mass % at whichtime the yeast will die and no longer convert sugars to alcohols. If this beverage is heated to boiling at91°C and the vapor condensed, what will the mass % of alcohol in the condensed liquid be?Ethanol's normal boiling point is 78 °C, AHvap ethanol = 38.7 kJ/mol (Ethanol is CH2CH2OH)Water's normal boiling point is 100 °C, AHvap water = 40.7 kJ/molNote: Due to the formation of an azeotrope between water and ethanol, the answer here is smallerthan what will actually result in p

The beverage contains 14.5 mass % ethanol initially.Boiling occurs at 91°C.Ethanol's normal boiling…

Answered: 9. Challenge: The alcohol content of a…

Introduction to General, Organic and Biochemistry

11th Edition

ISBN:9781285869759

Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Publisher:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Chapter4: Chemical Reactions

Section: Chapter Questions

Problem 4.100P

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A) Ethanol, C2H6O, is most often blended with gasoline - usually as a 10 percent mix - to create a fuel called gasohol. Ethanol is a renewable resource and ethanol-blended fuels, like gasohol, appear to burn more efficiently in combustion engines. The combustion of one mole of ethanol releases 326.7 kcal of energy.The combustion of one mole of 2-methylhexane, C7H16, releases 1.150×103 kcal of energy. How much energy is released during the complete combustion of 495 grams of 2-methylhexane ?------------- kcalAssuming the same efficiency, would 495 grams of ethanol provide more, less, or the same amount of energy as 495 grams of 2-methylhexane? --------- B) Combustion reactions are exothermic. The heat of reaction for the combustion of 2-methylheptane, C8H18, is 1.306×103 kcal/mol. What is the heat of combustion for 2-methylheptane in kcal/gram?--------- kcal/gramHow much heat will be given off if molar quantities of 2-methylheptane react according to the following equation? 2 C8H18+25…
1. Essential oils are concentrated liquid containing metabolites extracted from plant sources and are widely used in the production of perfumes. Most of these substances are soluble in organic solvents, such as acetone. The structures of some of these compounds present in essential oils are presented below. H H H H H LIQUID A MW: 132.16 g/mol LIQUID C MW: 136.23 g/mol H H. H H H LIQUID B MW: 164.20 g/mol HH acetone MW: 58.08 g/mol H H H Possible vapor pressure values: 0.0221 mm Hg, 0.0750 mm Hg, 1.689 mm Hg, 225 mm Hg A. Given the molar mass and molecular structures of the compounds, determine their most possible vapor pressure for each substance.
Ff.316.
6H2O + 6CO2 --> C6H12O6 + 6O2 H=+2803 kJ/mol calculate the mass (in kg) of glucose that can be synthesized by a plant through photoynthesis when 2.49 x 10^4 kJ of sunlight energy is absorbed by the plant
Ethanol, C2H6O, is most often blended with gasoline - usually as a 10 percent mix - to create a fuel called gasohol. Ethanol is a renewable resource and ethanol-blended fuels, like gasohol, appear to burn more efficiently in combustion engines. The heat of combustion of ethanol is 326.7 kcal/mol.The heat of combustion of 2-methylhexane, C7H16, is 1.150×103 kcal/mol. How much energy is released during the complete combustion of 452 grams of 2-methylhexane ?Assuming the same efficiency, would 452 grams of ethanol provide more, less, or the same amount of energy as 452 grams of 2-methylhexane?
Ethanol, C2H6O, is most often blended with gasoline - usually as a 10 percent mix - to create a fuel called gasohol. Ethanol is a renewable resource and ethanol-blended fuels, like gasohol, appear to burn more efficiently in combustion engines. The heat of combustion of ethanol is 326.7 kcal/mol.The heat of combustion of 2-methylhexane, C7H16, is 1.150×103 kcal/mol. How much energy is released during the complete combustion of 446 grams of 2-methylhexane ??? kcalAssuming the same efficiency, would 446 grams of ethanol provide more, less, or the same amount of energy as 446 grams of 2-methylhexane?
Ethanol, C2H6O, is most often blended with gasoline - usually as a 10 percent mix - to create a fuel called gasohol. Ethanol is a renewable resource and ethanol-blended fuels, like gasohol, appear to burn more efficiently in combustion engines. The heat of combustion of ethanol is 326.7 kcal/mol.The heat of combustion of 2-methylhexane, C7H16, is 1.150×103 kcal/mol. How much energy is released during the complete combustion of 446 grams of 2-methylhexane ?________ kcal Assuming the same efficiency, would 446 grams of ethanol provide more, less, or the same amount of energy as 446 grams of 2-methylhexane? _________. (more, less, or the same amount)
Ethanol, C₂H6O, is most often blended with gasoline - usually as a 10 percent mix - to create a fuel called gasohol. Ethanol is a renewable resource and ethanol-blended fuels, like gasohol, appear to burn more efficiently in combustion engines. The combustion of one mole of ethanol releases 326.7 kcal of energy. The combustion of one mole of hexane, C6H₁4, releases 995.0 kcal of energy. How much energy is released during the complete combustion of 482 grams of hexane? kcal Assuming the same efficiency, would 482 grams of ethanol provide more, less, or the same amount of energy as 482 grams of hexane?
Ethanol, C2H6O, is most often blended with gasoline - usually as a 10 percent mix - to create a fuel called gasohol. Ethanol is a renewable resource and ethanol-blended fuels, like gasohol, appear to burn more efficiently in combustion engines. The combustion of one mole of ethanol releases 326.7 kcal of energy.The combustion of one mole of hexane, C6H14, releases 995.0 kcal of energy. How much energy is released during the complete combustion of 380 grams of hexane ?kcalAssuming the same efficiency, would 380 grams of ethanol provide more, less, or the same amount of energy as 380 grams of hexane?
What's the answer?
During the combustion of 5.00 gg of octane, C8H18C8H18, 239.5 kcalkcal (1002 kJkJ) is released. what is the balanced equation for the combustion reaction? How much energy (in kJkJ) is released by the combustion of 1.21 molmol of C8H18C8H18 ? How many moles of octane must be burned to release 442.4 kcalkcal ? How many kilocalories are released by the combustion of 18.3 gg of C8H18C8H18 ?
Ethanol, C₂H6 O, is most often blended with gasoline - usually as a 10 percent mix - to create a fuel called gasohol. Ethanol is a renewable resource and ethanol-blended fuels, like gasohol, appear to burn more efficiently in combustion engines. The combustion of one mole of ethanol releases 326.7 kcal of energy. The combustion of one mole of octane, C8 H18, releases 1.308 × 10³ kcal of energy. How much energy is released during the complete combustion of 460. grams of octane? kcal Assuming the same efficiency, would 460. grams of ethanol provide more, less, or the same amount of energy as 460. grams of octane? D more less the same amount Retry Entire Group 8 more group attempts remaining

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