12) Which of the following compounds absorbs the longest wavelength of UV-visible light and why? (2...
Which of the following compounds absorbs the shortest wavelength of UV visible light? О а Oь О с (E)-2-butene (Z)-2-butene butane (Z)-1,3-hexadiene O d o e (E)-1,3,5-hexatriene
1/ Ultraviolet (UV) light is _____. a. the longest wavelength of light visible to the human eye b. the shortest wavelength of light visible to the human eye c. invisible to humans d. visible as the color viole 2/ The seasons occur because of _____. a. the angle at which sunlight strikes the surface and by how long the sun shines on any latitude b. Earth's elliptical orbit that brings northern latitudes closer to the sun in summer than in winter...
please answer 1-4 &6 Questions The energy of UV light is 70 kcal/mole at 400 nm and 140 kcal/mole at 200 nm. Why is UV radiation damaging to the eyes and skin? (Hint: Think about the energy required to break a C-C bond.) 2. Which is more energetic: 235 nm or 325 nm light? Explain. 3.) Why is UV spectroscopy used more frequently in organic chemistry than visible spectroscopy? 4. Using the structure of methyl orange as an example, draw...
Which of the following compounds would show the Imax of longest wavelength in its UV-Vis spectrum?
Which of the following is arranged from shortest wavelength to longest? A. X-rays, visible, infrared B. infrared, visible, X-rays C. visible, infrared, X-rays D. infrared, X-Rays, visible 5. 7 8 R Y U
1.(3) The line of longest wavelength in visible light for the emission spectrum of hydrogen, 656nm (Balmer series), would correspond to what electronic transition? 2.(7) Explain the wave-particle duality of matter and light. Why don’t we notice this effect in everyday activities? What do electrons behave most like in an atom? 3.(8) What is the approximate range, in nm, for visible light? Which end contains photons of the highest energy? What is the mathematical relationship between energy of a photon...
1.(3) The line of longest wavelength in visible light for the emission spectrum of hydrogen, 650nm (Balmer series), would correspond to what electronic transition? 2.(7) Explain the wave-particle duality of matter and light. Why don't we notice this effect in everyday activities? What do electrons behave most like in an atom?
20,23,24. Explain why you chose that answer. D. 2-BImobut-1-ene 20. Which of the following is not a feature of the Diels-Alder reaction? They form a new six-membered rings. BO They are initiated by peroxides. C. Three T-bonds break. D. They are concerted. 21. Rank the following dienes in order of increasing reactivity in a Diels-Alder reaction, listing the least reactive first A. I II III B. III <I<II E. II <I<III I<III <II 23. What is the major organic product...
Which of these compounds exhibits the longest wavelength Imax in the UV-vis spectrum? O A. OB. OC. What is the major product of this reaction? 1 equiv. HBr -80°C Br لد A. Br B. OC. Br Br OD. Rank these conformations from least to most stable (less stable < more stable). H Cl CI CH3 H CH3 Н H CH3 CH CI H CH 3 H CH 3 3 H H H - 11 A. II < III < B....
Which of the following food coloring agents absorbs at the longest wavelength? Erythrosine (red #3) Tartrazine (yellow #5) Fast Green (green #3) Indigo carmine (blue #2)