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EBK A SMALL SCALE APPROACH TO ORGANIC L

4th Edition

ISBN:9781305446021

Author:Lampman

Publisher:Lampman

Chapter24: Preparation Of Soap

Section: Chapter Questions

Problem 1Q

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Assign the ¹H NMR spectra for the phosphonium salt (Ph3P+CH₂CO₂Et Br¯), ylid (Ph3P=CHCO2Et) and product A (i.e. decide which H environment corresponds to each signal). [Note the two-bond coupling of the a-hydrogen to phosphorus (H-C-P) is observed because P has a nuclear spin of 12]. ¹H NMR data for the phosphonium salt Ph3P+CH₂CO₂Et Br Chemical Shift (ō) 7.98-7.78 7.75-7.65 5.45 4.02 1.05-1.15 Integration (in mm) Br Integral (Number of H's) Splitting Pattern (s, d, t, m.., etc) Assignment
What mass of carbon dioxide is formed from burning one gallon of octane, C8H18? Octane has a density of 703 kg/m3.1 L = 0.2642 gal 1 lb = 453.592 gAn average tree absorbs 48 pounds of CO2 in one year. How many trees would you need to plant to offset the CO2produced from burning one gallon of octane every day for one year (365 days)?
Scrubbers are a type of pollution control technology installed on industry smokestacks to capture sulfur dioxide before it is emitted to the atmosphere. Once collected, the sulfur dioxide can be used to manufacture sulfuric acid, which can be sold to other companies that make detergents. Explain how the use of scrubber technology benefits both industry and the environment.
what is the Gravimetric analysis? how we can use it to determine the Phosphorus content of commercial plant food?
Why do certain microbes oxidize ammonium and sulfide? How do these processes affect soil fertility?
A stimulus causes an electrical signal to move along a nerve due to: Change of positive ions into negative ions Change in permeability of the cell membrane to ions allowed to move through Change in thickness of the cell membrane Change in stimulus as it moves through the nerve
4
EXTRACTION OF A PURE METAL FROM A METAL ORE closely follows one method of making copper metal in the industry. Imagine doing this reaction on a much larger scale (thousands of tons a day instead of a few grams). What effects could this process have on the environment?
Cyanobacteria are chemosynthetic organisms that reside deep in the ocean near hydrothermal vents. Archeoglobus, one of these types of cyanobacteria, uses the pathway shown in the chemical equation. 4H2 + SO42− + 2H+ → H2S + 4H2O Based on this equation, which explanation best describes how the process of chemosynthesis in bacteria differs from photosynthesis, and why can this process occur in the absence of oxygen? Chemosynthesis uses H2 as an energy source, while photosynthesis uses the Sun as an energy source. Chemosynthesis uses H+ as an energy source, while photosynthesis uses the Sun as an energy source. Chemosynthesis reduces a sulfate molecule in the absence of oxygen and light, while photosynthesis depends on light to reduce carbon dioxide. Chemosynthesis oxidizes a sulfate molecule in the absence of oxygen and light, while photosynthesis depends on light to reduce carbon dioxide.
It is known that vitamin C decomposes upon the exposure to air or heating. Briefly describe how you would investigate these two factors. Give a reason why cooking is likely to reduce the amount of vitamin C of vegetables.
Water potential is the tendency of water to move from one place to another. Pumpkin cores were placed in sucrose solutions at 22°C and normal atmospheric pressure. The following data were gathered. Complete the above table. Graph the percentage change in mass. Label both the x and y axes. Using the graph, determine the molar concentration of the pumpkin cores and explain how it is related to pressure potential.
None

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Discuss any one real world application of plasma. 1) How is made? 2) What is it used for 4) What makes it unique/cool 3) Discuss where and how it relates to something in life