In keto-enol tautomerization, steric repulsions can be larger for the keto form than the enol configuration....
In keto-enol tautomerization, steric repulsions can be larger for the keto form than the enol configuration. This effect is thought to be less important in the β-ketoesters, in which the R to R separation is greater.
Discuss the above statements.
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In keto-enol tautomerization, steric repulsions can be larger
for the keto form than the enol configuration....
Can you change this sentence so I dont get caught for plagerizm Both of the enthalpies...
Can you change this sentence so I dont get caught for plagerizm Both of the enthalpies are small and positive meaning heat is absorbed. Both the entropies are negative and small, meaing this reaction was nonspontaneous. This reaction is enthalpy driven. The entropy change for the reaction makes sense because the keto configuration is more favored than the enol configuration The thermodynamic values resolved from the global analysis compare with the data collected over a small temperature range are different...
19. Which of the following can undergo keto-enol tautomerism? a. 2,4-dimethyl-3-pentanoneb. 2.2.4,4-tetramethyl-3-pentanone c, both a and...
19. Which of the following can undergo keto-enol tautomerism? a. 2,4-dimethyl-3-pentanoneb. 2.2.4,4-tetramethyl-3-pentanone c, both a and b d. neither a norb 20. Which of the following compounds is a tautomer of the following compound? MOH OH OH c. both a and b d. neither a norb 21. Examine the following ball-and-stick models. Atoms other than carbon and hydrogen are labeled with the symbol of the element. How is this reaction classified? a. oxidation b. reduction c. tautormerization d. hemiacetal formation...
22. Select the correct statements below. L. An atom of chlorine is larger than sulfur because...
22. Select the correct statements below. L. An atom of chlorine is larger than sulfur because the addition of an electron increases the repulsions without an increase in attraction for the nucleus resulting in less screening. An atom of oxygen is smaller than an atom of carbon because the distance of the valence electrons remains the same while the attraction for the nucleus increases with increasing number of protons. III. An atom of potassium is smaller than an atom of...
gibly drawn to scale ray diagrams showing h ation ng configuration: converging lens of 15em fixed focal length em in length. An object is placed at 0.0 em, can be detected is placed somewhere...
gibly drawn to scale ray diagrams showing h ation ng configuration: converging lens of 15em fixed focal length em in length. An object is placed at 0.0 em, can be detected is placed somewhere on an optical bench of 240 and a screen is placed where ever a focused image Use the illustrations on the following pages to construct one ray diagram for each of the following situations, using the basic configuration given above. Situation a) Measuring from the object...
41. Which of the following statements about protein-ligand binding is correct? A) The K is equal...
41. Which of the following statements about protein-ligand binding is correct? A) The K is equal to the concentration of ligand when all of the binding sites are occupied. B) The K is independent of such conditions as salt concentration and pH. C) The larger the K. (association constant), the weaker the affinity. D) The larger the K. the faster is the binding. E) The larger the K, the smaller the K. (dissociation constant) 42. The ability of O, to...
1. Even though bond markets are larger than equity markets,bond markets tend to be less liquid...
1. Even though bond markets are larger than equity markets,bond markets tend to be less liquid than equity markets, Evaluate the words in italics. True or False? rue b. False 2. Which of the following statements is most likely FALSE: a. Increasing the number of stocks in a portfolio from 10 to 20 will decrease total risk b. Increasing the number of stocks in a portfolio from 10 to 20 will decrease non-systematic c. Decreasing the number of stocks in...
According to Robert Trivers, why are men generally larger and more physically aggressive than women? Because...
According to Robert Trivers, why are men generally larger and more physically aggressive than women? Because women are more reproductively “valuable” than men, hence competition for mates is fiercer among men Because men invest more heavily in reproduction than women Because men secrete more testosterone Trivers’ theory does not speculate on the origin of the sex difference in size and physical aggression Although some women are interested in casual sex (short-term mating), research has suggested that there are differences in...
.Please form info discussion groups of 3 (no more than 3) to solve the following questions....
.Please form info discussion groups of 3 (no more than 3) to solve the following questions. Use the boards in the classroom to discuss the details of your solutions and show of work. Markers and erasers will be provided. Please return them after end of the class. Groups will be called to solve the questions for the rest of the class (bonus points opportunity) The final answers to each question is provided in the parenthesis. You need to arrive at...
1.Acidic materials can be identified by which of the following test outcomes: a. They react...
1.Acidic materials can be identified by which of the following test outcomes: a. They react with metals. b. They feel slippery. c. They may taste bitter. d. They turn litmus paper red. e. All of the above. 2. Which of the following would you expect to turn litmus paper blue: a. chalk b. baking soda c. oven cleaner d. all of the above e. none of the above 3. Which of the following statements about acidic water...
QUESTION 18 Which of the following statements is CORRECT? 1. An investor can eliminate virtually all...
QUESTION 18
Which of the following statements is CORRECT?
1.
An investor can eliminate virtually all diversifiable risk if
he or she holds a very large, well-diversified portfolio of
stocks.
2.
Once a portfolio has about 40 stocks, adding additional stocks
will not reduce its risk by even a small amount.
3.
It is impossible to have a situation where the market risk of
a single stock is less than that of a portfolio that includes the
stock.
4.
An...
19. Which of the following can undergo keto-enol tautomerism? a. 2,4-dimethyl-3-pentanoneb. 2.2.4,4-tetramethyl-3-pentanone c, both a and b d. neither a norb 20. Which of the following compounds is a tautomer of the following compound? MOH OH OH c. both a and b d. neither a norb 21. Examine the following ball-and-stick models. Atoms other than carbon and hydrogen are labeled with the symbol of the element. How is this reaction classified? a. oxidation b. reduction c. tautormerization d. hemiacetal formation...
22. Select the correct statements below. L. An atom of chlorine is larger than sulfur because the addition of an electron increases the repulsions without an increase in attraction for the nucleus resulting in less screening. An atom of oxygen is smaller than an atom of carbon because the distance of the valence electrons remains the same while the attraction for the nucleus increases with increasing number of protons. III. An atom of potassium is smaller than an atom of...
gibly drawn to scale ray diagrams showing h ation ng configuration: converging lens of 15em fixed focal length em in length. An object is placed at 0.0 em, can be detected is placed somewhere on an optical bench of 240 and a screen is placed where ever a focused image Use the illustrations on the following pages to construct one ray diagram for each of the following situations, using the basic configuration given above. Situation a) Measuring from the object...
41. Which of the following statements about protein-ligand binding is correct? A) The K is equal to the concentration of ligand when all of the binding sites are occupied. B) The K is independent of such conditions as salt concentration and pH. C) The larger the K. (association constant), the weaker the affinity. D) The larger the K. the faster is the binding. E) The larger the K, the smaller the K. (dissociation constant) 42. The ability of O, to...
1. Even though bond markets are larger than equity markets,bond markets tend to be less liquid than equity markets, Evaluate the words in italics. True or False? rue b. False 2. Which of the following statements is most likely FALSE: a. Increasing the number of stocks in a portfolio from 10 to 20 will decrease total risk b. Increasing the number of stocks in a portfolio from 10 to 20 will decrease non-systematic c. Decreasing the number of stocks in...
.Please form info discussion groups of 3 (no more than 3) to solve the following questions. Use the boards in the classroom to discuss the details of your solutions and show of work. Markers and erasers will be provided. Please return them after end of the class. Groups will be called to solve the questions for the rest of the class (bonus points opportunity) The final answers to each question is provided in the parenthesis. You need to arrive at...
QUESTION 18
Which of the following statements is CORRECT?
1.
An investor can eliminate virtually all diversifiable risk if
he or she holds a very large, well-diversified portfolio of
stocks.
2.
Once a portfolio has about 40 stocks, adding additional stocks
will not reduce its risk by even a small amount.
3.
It is impossible to have a situation where the market risk of
a single stock is less than that of a portfolio that includes the
stock.
4.
An...
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