The yellow solution containing the reactants was slowly poured into the beaker containing the cold water and the acid in order to cause the precipitation of the alcohol, 9-fluorenol and to destroy (hydrolyzed) the unreacted excess sodium borohydride. Subsequently, the white precipitate was vacuum filtered and washed twice with 20.0 ml portions of distilled cold water by pouring the liquid into the Buchner Funnel during filtration. It was necessary to wash the alcohol prior to recrystallization considering that the C-OH bond is easily broken by the formation of a stable and benzylic carbocation that favors the synthesis of difluorenyl ether. Finally, before the purification by recrystallization of the obtained product, the white solid alcohol was allowed to dry over a period of a
Most gasoline has 10-15% alcohol produced from corn. As a result, some say, the price of food has risen, causing hardship, increased food prices, and other problems. What are the real facts? Gasoline has ethanol inside, ethanol comes from corn. Corn is the main source of ethanol, many people spend 50% or more of their income on food.
How a man goes about dealing with his past experiences portrays not only his character, but also his true inner self. This is especially true in Edith Wharton’s novel Ethan Frome. The main character, Ethan Frome, struggles with the consequences of his decision to marry his wife Zenobia following the loss of his parents. Ethan made this disastrous decision because of a feeling of obligation from societal pressure and ancestral conservatism. Wharton controls Frome like a puppet throughout the story displaying his perpetual contentions with his mistake-ridden marriage and uses it to power the novel as a whole.
Sorghum [Sorghum bicolor (L.) Moench] is the fifth most important cereal crop grown in the world used as human and animal food, feedstock for energy production, fodder, and production of starch and starch derivatives (Doggett 1988; Bogunjoko 1992; Taylor et al. 2006; Rao et al. 2009; Sriroth et al. 2012; Proietti et al. 2015). In Brazil, sorghum is used primarily for animal feed production, and secondarily as forages, such as silage, grazing, and hay (Tabosa et al. 1993;
The first section of the of the Corinthian II (Image 2 )has more weight in it. This weight is created by the energy represented in the diagonal lines, that in addition to already represent movement or energy the deep and dark color of the oil paint gives a greater sense of power to the lines. The come together to impact the only horizontal line, which are associated with strength and power. The diagonals shock the horizontal line with such energy that the horizontal line is bent, to the point that a small portion of the energy in the diagonal lines is transferred to the other section that is nearly clear of energy except for the impact point. This is how Kline created symmetrical balance in the Corinthian II, by dividing his work in two sections and giving one substantially more weight and the other section close to no weight.
What Is It? Ethylene glycol is an organic compound, specifically an alcohol that belongs to the –OH functional group; it is composed of carbon, hydrogen, and oxygen with the chemical formula of C2H6O2. It is a colourless, clear liquid with a syrupy consistency and sweet taste; it has no odor however. Ethylene glycol has a melting point of −12.9 °C (8.8 °F; 260.2 K) and boiling point of 197.3 °C (387.1 °F; 470.4 K).
This summer, I was presented with the opportunity to read a classic book that goes by the name of Ethan Frome. At the beginning of the book, I was very lost and did not understand much of it because of the dialect that was being used in the book. As I kept reading it, I learned to accept it and I actually started to understand it a lot more. While reading this book, I had many thoughts about Ethan’s behavior, but my main thought was why would Ethan go and try to be with somebody else while he was already undoubtedly committed to a woman named Zeena?
Identification of Unknown Solutions and Ammonium Salts preAice Chemistry Lab Report Descriptions of unknown solutions: Unknown Descriptions A Clear, colorless, odorless liquid. B Clear, colorless, odorless liquid. C Clear, red-brown, odorless liquid D Clear, yellow-orange, odorless liquid.
Ethanol fuel produced from corn is a renewable energy source that hoped to replace fossil fuels as the main source of fuel for vehicles. It is produced mainly through the dry grind method, a process that involves liquification and fermentation. Ethanol has potential as an alternative energy source, but like most options, it has its advantages and disadvantages. There are various advantages to using ethanol fuel, some of which include the reduction of greenhouse gases produced, its biodegradable nature, its positive net energy balance, and the fact that most of the mechanisms required to initiate the widespread use of ethanol are already available. Ethanol minimizes damage to the environment while promising sustainability.
The article states that ethanol fuel which produce by plants, has been supplanted by some of people as replacement to gasoline in the United States and provides three reasons of support. However, the professor explains that ethanol fuel is a good alternative fuel instead of gasoline gas and refutes each of the author’s reasons. First of all, the author of the reading passage claims that ethanol fuel does not help to solve the major problem of environment such as global warming that release carbon dioxide as a greenhouse gas like gasoline, this greenhouse gas traps heat in the atmosphere of earth. The professor refutes this point by saying that increase of ethanol fuel does not add the greenhouse gas in atmosphere, because carbon dioxide released
81% of our energy comes from fossil fuels to run our cars, fly planes, and heat our homes. According to research by The Global Education Project, the world is consuming more fossil fuels then we are discovering. Since fossil fuels are a nonrenewable resource, if we run out of fossil fuels than there will be no more to use. What would happen if we ran out of fossil fuels? Ethanol is a renewable fuel source made from crops like corn and other plant materials.
There are two methods of obtaining cyclohexane. These two methods are fractional distillation of naphtha and hydrogenation of benzene. Research suggest that the hydrogenation of benzene is the most economical way to create our chemical of choice. According to ICIS, cyclohexane is used in the production of adipic acid used to
Task 1 : Advert: 1. Alcohol is indirectly portrayed in each advert as something that is negative and has a degrading effect on one's life. In both adverts, we see the individuals perform actions that make them look ragged and uncouth, such as the boy smearing food on himself and the girl smudging her makeup, and we can thus deduce that this is the negative, degrading effect of alcohol. 2. It may cause the viewer to question their binge drinking.
Introduction Methane in the earth atmosphere is an important greenhouse gas with global warming potential 23 times greater than carbon dioxide and considerable evidence of climate change is also associated with emission of greenhouse gases (GHG), mainly carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O), in the atmosphere (IPCC, 2007). The primary sources of methane emission may be divided into natural (30%) and anthropogenic (70%) (Wuebbles & Hayhoe, 2001). Among the anthropogenic factors agriculture, including animal production is a major sector with highly significant contribution to environmental pollution. According to Steinfeld et al. (2006), 80 million tonnes of methane is released annually to the atmosphere from animal production
This method which uses an internal standard and flame ionisation detector, is exact and more specific than methods usually used. The gas-liquid chromatography method determines ethanol clearly and separately from the other beverage components that would have interfered in other methods, without any distillation or need for a chemical reaction. Determination of ethanol is one of the most vital routine analysis in a current winery. This method provides frequent, rapid and accurate results are needed to regulate the quality of the wine from grape to bottle, as well as for state and federal government
