Homework Answers
Torsional strain is the resistance to bond twisting and occurs when atoms separated by three bonds are placed in an eclipsed conformation instead of the more stable staggered conformation. The barrier of rotation between staggered conformations of ethane is approximately 2.9 kcal/mol. More complex molecules, such as butane, have more than one possible staggered conformation. The anti conformation of butane is approximately 3.8 kcal/mol more stable than the gauche conformation.Both of these staggered conformations are much more stable than the eclipsed conformations. In ethane the stability is due to hyperconjugative effect but in butane the strain in both angel and steric is due to interactions between two methyl groups.
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Need help with this staggered/eclipse question.
Use the information in the two diagrams above to calculate...
Please help to answer this, so I can understand this, Thanks !! 5.) (12 points) For...
Please help to answer this, so I can understand this, Thanks
!!
5.) (12 points) For 2,3-dimethylpentane, (CH3)2CH-CH(CH)2 (a) sighting along the indicated bond, draw all possible staggered conformers using Newman projections, identify the strains, ergy of each conformer, and rank the conformers according to stability (b) draw the least stable eclipsed conformer, show the strains, and give the total strain energy. (See Reference Section at end of test for strain-energy values.) (4 points) Cyclopropane has a total strain energy...
need help 4. Assume that you have samples of the following two molecules, both with the...
need help
4. Assume that you have samples of the following two molecules, both with the formula CsH160. a) Suppose you are given one of the above molecules (but not both). How could you use an oxidation reaction to determine which molecule you have? Briefly explain with text and reasonable sketches. b) Suppose you are given one of the above molecules (but not both). How could you use dehydration reaction to determine which molecule you have? Briefly explain with text...
need help with d. use the information above to solve the question for d 1. (Step...
need help with d.
use
the information above to solve the question for d
1. (Step 3: Practice with standard cell potentials) Use the simulation to determine the half-cell potential for the metal "X". a. What is the balanced half-cell reaction corresponding to the reduction of metal X? 2148) 2e- → X Ls) b. What cell potentials did you measure, to help determine the half-cell reduction potential for metal X, and what values did you obtain (list two different cells,...
Please help with this question, I am having a hard time understanding. Need a clear diagram...
Please help with this question, I am having a hard time
understanding. Need a clear diagram to grasp the idea. Thank
you!
3. Two wires lie perpendicular to the plane of the paper, and ass through the paper in th directions shown. Point P is equidistant from the two wires Construct a vector diagram showing the direction of the resultant magnetic field at point P due to currents in these two wires. Explain your reasoning. a) b) If the currents...
Need help answering the two underlined questions using the given diagrams. Thank you Question 1 in...
Need help answering the two underlined questions using the given
diagrams. Thank you
Question 1 in red Question 2 in blue In practice, the output of the differentiator in Figure 1 is quite sensitive to the noise perturbation, especially in the high frequency regime (Can you explain why?). For this reason, we incorporate a series resistor at the input as shown in Figure 3 (Can you explain the role of this resistor). N VCC -V cc Figure 1: A simple...
I need help for these question, please help Question 2 The following table provides information about...
I need help for these question, please help
Question 2 The following table provides information about Fit's personal trainer service, a firm that is in monopolistic competition with similar firms that offer slightly differentiated services. Demand schedule Price Quantity ($/session) (session/hour) 45 Production costs Total cost ($) 21 40 33 38 30 25 4 72 a) Calculate the marginal revenue and marginal cost. (4 marks) b) What is Fit's profit-maximizing quantity? What is Fit's price? (2 marks) c) Is Fit...
Just need the answer to question 6 using the information provided in the block above question...
Just need the answer to question 6 using the information
provided in the block above question 5. Please be clear due to this
being a multi-step problem. Thanks
Let g(x) = 1- x and f(x) = x2 - 2x + 1 for Problems 5 and 6 below. 5. (a) Draw a graph of f(x) and g(x) on the same axes, and label their points of intersection. Calculate the area below g(2) and above the z-axis between I = 0 and...
need help with question 3-4 3. Based on your observation of the electron beam, what characteristic...
need help with question 3-4
3. Based on your observation of the electron beam, what characteristic of the beam assures us that the electrons all have the same mass? Note: This characteristic forms the basis for a mass spectrometer. 4. Explain on the basis of their own created magnetic fields why a group of electrons all moving in the same direction stays together Further Investigation 1. 12 points) Locate the controls and connections for lower voltage power supply (0 -...
PLEASE HELP! WILL GIVE GREAT REVIEW! Use what you need of the following set of information...
PLEASE HELP! WILL GIVE GREAT REVIEW! Use what you need of the following set of information to answer the question: S0 = $1.1420/€ S0 = £0.7776/$ S0 = $1.2860/£ E (S1 (3-months)) = $1.1280/€ F3-months = $1.1590/€ Where: € = euro; £ = British pound; E ( ) = Expected. If a currency dealer wants to use the above three-month forward rate to quote the three-month dollar as a percent premium or discount what rate would she...
i need help with 16-18 : Short answers. Please answer the following questions in the space provided next to each q...
i need help with 16-18
: Short answers. Please answer the following questions in the space provided next to each question. Answer each question to the best of your ability, Be sure to show your thought process. 16. C. D. E and F. Consider the following energy diagram with energy maxima and minima marked as A, B. 45 kcalimol 19 kmol 45 kcalmol 19kmol 360 300 180 240 60 pihedral angle a) The conformations at a gap of 60° of...
Please help to answer this, so I can understand this, Thanks
!!
5.) (12 points) For 2,3-dimethylpentane, (CH3)2CH-CH(CH)2 (a) sighting along the indicated bond, draw all possible staggered conformers using Newman projections, identify the strains, ergy of each conformer, and rank the conformers according to stability (b) draw the least stable eclipsed conformer, show the strains, and give the total strain energy. (See Reference Section at end of test for strain-energy values.) (4 points) Cyclopropane has a total strain energy...
need help
4. Assume that you have samples of the following two molecules, both with the formula CsH160. a) Suppose you are given one of the above molecules (but not both). How could you use an oxidation reaction to determine which molecule you have? Briefly explain with text and reasonable sketches. b) Suppose you are given one of the above molecules (but not both). How could you use dehydration reaction to determine which molecule you have? Briefly explain with text...
need help with d.
use
the information above to solve the question for d
1. (Step 3: Practice with standard cell potentials) Use the simulation to determine the half-cell potential for the metal "X". a. What is the balanced half-cell reaction corresponding to the reduction of metal X? 2148) 2e- → X Ls) b. What cell potentials did you measure, to help determine the half-cell reduction potential for metal X, and what values did you obtain (list two different cells,...
Please help with this question, I am having a hard time
understanding. Need a clear diagram to grasp the idea. Thank
you!
3. Two wires lie perpendicular to the plane of the paper, and ass through the paper in th directions shown. Point P is equidistant from the two wires Construct a vector diagram showing the direction of the resultant magnetic field at point P due to currents in these two wires. Explain your reasoning. a) b) If the currents...
Need help answering the two underlined questions using the given
diagrams. Thank you
Question 1 in red Question 2 in blue In practice, the output of the differentiator in Figure 1 is quite sensitive to the noise perturbation, especially in the high frequency regime (Can you explain why?). For this reason, we incorporate a series resistor at the input as shown in Figure 3 (Can you explain the role of this resistor). N VCC -V cc Figure 1: A simple...
I need help for these question, please help
Question 2 The following table provides information about Fit's personal trainer service, a firm that is in monopolistic competition with similar firms that offer slightly differentiated services. Demand schedule Price Quantity ($/session) (session/hour) 45 Production costs Total cost ($) 21 40 33 38 30 25 4 72 a) Calculate the marginal revenue and marginal cost. (4 marks) b) What is Fit's profit-maximizing quantity? What is Fit's price? (2 marks) c) Is Fit...
Just need the answer to question 6 using the information
provided in the block above question 5. Please be clear due to this
being a multi-step problem. Thanks
Let g(x) = 1- x and f(x) = x2 - 2x + 1 for Problems 5 and 6 below. 5. (a) Draw a graph of f(x) and g(x) on the same axes, and label their points of intersection. Calculate the area below g(2) and above the z-axis between I = 0 and...
need help with question 3-4
3. Based on your observation of the electron beam, what characteristic of the beam assures us that the electrons all have the same mass? Note: This characteristic forms the basis for a mass spectrometer. 4. Explain on the basis of their own created magnetic fields why a group of electrons all moving in the same direction stays together Further Investigation 1. 12 points) Locate the controls and connections for lower voltage power supply (0 -...
i need help with 16-18
: Short answers. Please answer the following questions in the space provided next to each question. Answer each question to the best of your ability, Be sure to show your thought process. 16. C. D. E and F. Consider the following energy diagram with energy maxima and minima marked as A, B. 45 kcalimol 19 kmol 45 kcalmol 19kmol 360 300 180 240 60 pihedral angle a) The conformations at a gap of 60° of...
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