(Be sure to specify units and to enter zero for interactions not present.) CH3 B+→ CH3...
Identify and count the interactions that destabilize the following conformation, and compute its strain energy using the values provided in the table. (Be sure to specify units and to enter zero for interactions not present.) HCH3 Hafa C CH Strain Energy Increments H Interaction Strain (kJ/mol) H eclipsing 4.0 H CH3 eclipsing 6.0 CH3 CH3 eclipsing 11.0 CH3 – CH3 gauche 3.8 H-H eclipsing C H -CH: eclipsing C CH3-CH3 eclipsing C CH3-CH3 gauche Total strain energy is kJ/mol
Specify the types of strain that destabilize the conformer shown below. Hint: All bonds not explicitly shown are in the staggered conformation. 1. Torsional strain 2. Angle (ring) strain 3. Steric (van der Waals) strain CH3 H H H. H CH3 Calculate strain energy for the conformer pictured below, using strain energy increments from the table. Strain Energy for Alkanes Interaction / Compound kJ/mol kcal/mol 4.0 1.0 H: H eclipsing H: CH3 eclipsing CH3 : CH3 eclipsing 5.8 1.4 11.0...
Calculate the strain energy
of the molecules above using the given strain energy increments
from the given table.
Calculate strain energy for the conformer pictured below, using strain energy increments from the table. Strain Energy for Alkanes Interaction / Compound kJ/mol kcal/mol H:Heclipsing 4.0 1.0 H: CH3 eclipsing 5.8 1.4 CH3 : CH3 eclipsing 11.0 2.6 gauche butane 3.8 0.9 cyclopropane 115 27.5 cyclobutane 110 26.3 cyclopentane 26.0 6.2 cycloheptane 26.2 cyclooctane 40.5 9.7 6.3 (Calculate your answer to the...
a. Use strain energy increments in the OWL Table Reference (see References button, Strain Energy Increments) to calculate the energy difference between the two chair conformations of the compound below. b. Specify substituent positions axial or equatorial) in the more stable chair. c. Estimate the percent of the more stable chair at equilibrium at 25°C. (To determine the percent of the more stable chair at equilibrium, first calculate Keq, and then use this value to find the percentage.) A CH3...
a. Use strain energy increments in the OWL Table Reference (see References button, Strain Energy Increments) to calculate the energy difference between the two chair conformations of the compound below. b. Specify substituent positions (axial or equatorial) in the more stable chair. c. Estimate the percent of the more stable chair at equilibrium at 25°C. (To determine the percent of the more stable chair at equilibrium, first calculate Keq, and then use this value to find the percentage.) OH H3C...
Strain Energy Increments Strain Energy for Alkanes Interaction/Compound kJ/mol kcal/ 4.0 H: Heclipsing 1.0 H: CH3 eclipsing 5.8 1.4 CH3 : CH3 eclipsing 11.0 2.6 gauche butane 3.8 0.9 cyclopropane 115 27.5 cyclobutane 110 26.3 cyclopentane 26.0 6.2 6.3 cycloheptane 26.2 cyclooctane 40.5 9.7 Axial Strain Energies for Monosubstituted Cyclohexanesab This table gives the sum of the values for the 1,3 diaxial interactions of the substituent with two hydrogen atoms. kJ/mol kcal/mol Substituent(solvent) -CH3 1.7 7.3 CH2CH3 7.5 1.8 -CH(CH3)2...
Strain Energy Increments Strain Energy for Alkanes Interaction / Compound kJ/mol kcal/mol H: Heclipsing 4.0 1.0 H: CH3 eclipsing 5.8 1.4 CH3 : CHз eclipsing 11.0 2.6 gauche butane 3.8 0.9 cyclopropane 27.5 115 cyclobutane 110 26.3 cyclopentane 26.0 6.2 cycloheptane 26.2 6.3 cyclooctane 40.5 9.7 Ln Axial Strain Energies for Monosubstituted Cyclohexanesa,b This table gives the sum of the values for the 1,3 diaxial interactions of the substituent with two hydrogen atoms. Substituent(solvent) К/mol kcal/mol -CНз 7,3 1,7 -CH-CHз...
A
B
C
Be sure to answer all parts. How many moles and numbers of ions of each type are present in the following aqueous solution? Enter your answers for the numbers of ions in scientific notation. 830. mL of a solution containing 2.84 x 1023 formula units of potassium bromide per liter mol potassium x 10 (select) ions potassium mol bromide x 10 (select) ions bromide Be sure to answer all parts. How many moles and numbers of ions...
Write a bash shell script, deleteFilesWithZeroLength.sh, that removes all zero length ordinary files in the directory passed as an optional argument. If you do not specify the directory argument, the script uses the present working directory as the default argument. Do appropriate exception handling in your script such as:If the arguments are more than 1, print out “Too many arguments passed”.If the argument passed is a regular file, print out “XXX is regular file”.1c. If the directory doesn’t exist, print out “Directory...
. Starting with equilibrium at zero, on the graph paper provided draw a transverse wave plitude of 3 units. Sketch three complete with a wavelength (a) of 6 units and an am waves and label them wave "A" of 4 units and an amplitude of 2. Starting with equilibrium at zero, draw a wave with a A 4 units. Sketch four complete waves and label them wave "B" When waves interfere with each other their amplitudes sum to the amplitude...