Using the Woodward-Fieser Rules to predict the wavelength of
maximum absorption wavelength for pseudoionone, a-ionone and
b-ionone. Show your calculations. 
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Using the Woodward-Fieser Rules to predict the wavelength of
maximum absorption wavelength for pseudoionone, a-ionone and...
38. Using the Woodward-Fieser rules, calculate the value of UV-vis absorption maximum wavelength in the UV-vis...
38. Using the Woodward-Fieser rules, calculate the value of
UV-vis absorption maximum wavelength in the UV-vis spectrum for
each compounds (heteroannular diene: 214 nm; homoannular diene: 253
nm)
end-G Current startA E, E Voltage Potential H3CO (a) (b) (c) Time
Can you do Q6? EXERCISES 153 Woodward's rules, predict the absorption maximum for the 2-5 Using...
Can you do Q6?
EXERCISES 153 Woodward's rules, predict the absorption maximum for the 2-5 Using following compound: Ans: 349 nm 2-6 A 10- M solution of Cu(lI) in concentrated HCl is a pale green-blue. whereas Cu(II) in concentrated ammonia is an intense blue-violet color. (a) What is the mechanism of absorption which is responsible for cupric-ion solu- tions being colored? (b) Explain why ammonia gives Cu(II) solutions an intense blue-violet color whereas HCI imparts a pale green-blue color. (e)...
Question 1: Use Woodward-Fieser rules to estimate the λmax for the following compound. To enter your...
Question 1: Use Woodward-Fieser rules to estimate the λmax for the following compound. To enter your
answer, type the number and the units (nm). For example, if you
felt the answer was 752 nanometers, you would enter 752 nm for the
answer.
Question 2: Which of the following best describes the
stereochemistry of ring closure and the product for the following
reaction?
disrotatory, cis-5,6-diethyl-1,3-cyclohexadiene
conrotatory, cis-5,6-diethyl-1,3-cyclohexadiene
disrotatory, trans-5,6-diethyl-1,3-cyclohexadiene
conrotatory, trans -5,6-diethyl-1,3-cyclohexadiene
We were unable to transcribe this imageWe were unable...
3. (7 points total) Hydrocarbon A, C10H14, has a UV absorption at Amax = 236 nm....
3. (7 points total) Hydrocarbon A, C10H14, has a UV absorption at Amax = 236 nm. Upon catalytic hydrogenation (H2, Pd/C), Hydrocarbon B, C10H18, is formed. Ozonolysis of A, followed by zinc/acetic acid treatment, yields the following diketo dialdehyde: a. (4 points) Propose two possible structures for hydrocarbon A: b. (3 points) Based on the UV data, which proposed structure for A is correct? Why? Justify your answer with Woodward-Fieser calculations.
2. The maximum wavelength of an ideal black body cavity radiation absorption is 6000 A. a....
2. The maximum wavelength of an ideal black body cavity radiation absorption is 6000 A. a. If the emission of thermal radiation from the cavity becomes 3 times, then what is the maximum wavelength and temperature? b. If the emission of thermal radiation from the cavity becomes times, then what is the maximum wavelength and temperature?
Estimate the wavelength of maximum absorption for the octahedral ion hexaamminecobalt(lII) from right the fact that...
Estimate the wavelength of maximum absorption for the octahedral ion hexaamminecobalt(lII) from right the fact that light transmitted by a solution of it is yellow-orange. Hint: use the color wheel to the 620 nm 800 nm 400 nm 580 nm nm Estimate the crystal field splitting energy Ap (in kJ mol) kJ mol-l 430 nm 490 nm Retry Entire Group 9 more group attempts remaining
620 nm Estimate the wavelength of maximum absorption for the octahedral ion trioxalatochromate(III) from the fact...
620 nm Estimate the wavelength of maximum absorption for the octahedral ion trioxalatochromate(III) from the fact that light transmitted by a solution of it is violet. Hint: use the color wheel to the right. 800 nm 400 nm → red orange 580 nm violet yellow Estimate the crystal field splitting energy A. (in kJ mol-?). blue green kJ mol-1 560 nm 430 nm 490 nm
LU Given that the maximum absorption in the d-d peak for(Ti(H20)6]3+ occurs at 20,300 cm-1, predict...
LU Given that the maximum absorption in the d-d peak for(Ti(H20)6]3+ occurs at 20,300 cm-1, predict where the d-d peaks will occur greater than or less than that of the aquo complex) for (TI(CN)6]3. and [Ti(CI)6]3.. Explain your reasoning. [6]
a presente en mainan show your creation or antholimo 1. Predict the UV maximum (show your...
a presente en mainan show your creation or antholimo 1. Predict the UV maximum (show your calculations) fo r each of the following substances: CH,CH,
a) If a compound has the wavelength of maximum absorbance of 600 nm, what would happen...
a) If a compound has the wavelength of maximum absorbance of 600 nm, what would happen if all of the samples were measured at a slightly higher wavelength (i.e. 620 nm)? b) When plotting data of concentration vs. absorption of the compound, will the change in wavelength affect the R^2 value of the graph? why or why not? c) Will the change in wavelength affect the molar absorptivity calculated from the graph? why or why not?
38. Using the Woodward-Fieser rules, calculate the value of
UV-vis absorption maximum wavelength in the UV-vis spectrum for
each compounds (heteroannular diene: 214 nm; homoannular diene: 253
nm)
end-G Current startA E, E Voltage Potential H3CO (a) (b) (c) Time
Can you do Q6?
EXERCISES 153 Woodward's rules, predict the absorption maximum for the 2-5 Using following compound: Ans: 349 nm 2-6 A 10- M solution of Cu(lI) in concentrated HCl is a pale green-blue. whereas Cu(II) in concentrated ammonia is an intense blue-violet color. (a) What is the mechanism of absorption which is responsible for cupric-ion solu- tions being colored? (b) Explain why ammonia gives Cu(II) solutions an intense blue-violet color whereas HCI imparts a pale green-blue color. (e)...
Question 1: Use Woodward-Fieser rules to estimate the λmax for the following compound. To enter your
answer, type the number and the units (nm). For example, if you
felt the answer was 752 nanometers, you would enter 752 nm for the
answer.
Question 2: Which of the following best describes the
stereochemistry of ring closure and the product for the following
reaction?
disrotatory, cis-5,6-diethyl-1,3-cyclohexadiene
conrotatory, cis-5,6-diethyl-1,3-cyclohexadiene
disrotatory, trans-5,6-diethyl-1,3-cyclohexadiene
conrotatory, trans -5,6-diethyl-1,3-cyclohexadiene
We were unable to transcribe this imageWe were unable...
3. (7 points total) Hydrocarbon A, C10H14, has a UV absorption at Amax = 236 nm. Upon catalytic hydrogenation (H2, Pd/C), Hydrocarbon B, C10H18, is formed. Ozonolysis of A, followed by zinc/acetic acid treatment, yields the following diketo dialdehyde: a. (4 points) Propose two possible structures for hydrocarbon A: b. (3 points) Based on the UV data, which proposed structure for A is correct? Why? Justify your answer with Woodward-Fieser calculations.
2. The maximum wavelength of an ideal black body cavity radiation absorption is 6000 A. a. If the emission of thermal radiation from the cavity becomes 3 times, then what is the maximum wavelength and temperature? b. If the emission of thermal radiation from the cavity becomes times, then what is the maximum wavelength and temperature?
Estimate the wavelength of maximum absorption for the octahedral ion hexaamminecobalt(lII) from right the fact that light transmitted by a solution of it is yellow-orange. Hint: use the color wheel to the 620 nm 800 nm 400 nm 580 nm nm Estimate the crystal field splitting energy Ap (in kJ mol) kJ mol-l 430 nm 490 nm Retry Entire Group 9 more group attempts remaining
620 nm Estimate the wavelength of maximum absorption for the octahedral ion trioxalatochromate(III) from the fact that light transmitted by a solution of it is violet. Hint: use the color wheel to the right. 800 nm 400 nm → red orange 580 nm violet yellow Estimate the crystal field splitting energy A. (in kJ mol-?). blue green kJ mol-1 560 nm 430 nm 490 nm
LU Given that the maximum absorption in the d-d peak for(Ti(H20)6]3+ occurs at 20,300 cm-1, predict where the d-d peaks will occur greater than or less than that of the aquo complex) for (TI(CN)6]3. and [Ti(CI)6]3.. Explain your reasoning. [6]
a presente en mainan show your creation or antholimo 1. Predict the UV maximum (show your calculations) fo r each of the following substances: CH,CH,
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