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In organic chemistry, the word "residue" is synonymous with "moiety." These words just refer to some part of a molecule being discussed or not being discussed. Any organic [functional] group, whether it is a ketone, an ester, a vinyl group or a benzene ring can be referred to as the "ketone residue," "ester residue," "vinyl residue," etc. The word "residue" probably started being used when the organic group to which someone was referring was not part of, or was not being included in, some other part of a molecule being discussed.
When someone is referring to the "ring" of a molecule, he is almost always talking about a benzene ring, although it is possible that he could be talking about any ring regardless of how many atoms it is comprised of or whether it is aromatic or not. But in general, just the word ring usually means a benzene, or phenyl, ring - same thing.
For example, aspirin contains a benzene ring, a carboxylic acid group (attached to the ring), and an acetylated phenol moiety or group (also attached to the ring). Imagine an organic chemist is discussing with his coworkers ways to replace one of the hydrogen atoms on the methyl group with one chlorine atom. I can imagine one of the chemists saying something like "That method might work, but it might also chlorinate the ring residue."
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What is ring residue in Woodward fiser rule of uv spectroscopy?
Ring residue in the Woodward-Fieser rule refers to the cumulative effect of additional rings in a molecule, which increases the absorption wavelength in UV spectroscopy. The presence of multiple ring structures leads to a red shift in the absorption maximum compared to a molecule with fewer rings. This phenomenon can be used to predict the absorption wavelength of conjugated systems based on the number and type of rings present in the molecule.
How do you clean a silver ring dropped in Clorox?
To clean a silver ring dropped in Clorox, soak it in a bowl of water mixed with baking soda for a few hours. After soaking, gently scrub the ring with a soft-bristled brush to remove any remaining residue. Rinse the ring thoroughly with water and dry it completely before wearing.
How would you use the world residue in a sentences?
The adhesive tape left a sticky residue on the glass.
What is another word for fuel residue?
Another word for fuel residue is "residual fuel."
What are distillation leftovers called?
The leftovers from distillation are called "residue" or "distillation residue." This is the material left behind after the desired components have been separated through the distillation process.
What causes a pink ring inside bathtub?
Bubble bath residue and epithelial tissue.
How did the bathtub ring form?
A bathtub ring forms from the residue left behind when water evaporates, leading to the concentration of soap scum, body oils, and minerals along the water line. These substances then combine to create a visible ring around the tub. Regular cleaning can help prevent the buildup of this residue.
What is meant by residue?
This might refer to the dirty ring left around a bathtub when someone soaks in a bathtub with soapy bubbles then empties the water. The dirty soap clings to the the sides of the bathtub leaving a ring mark of residue where the high water level was.
What is a benzophenanthridine?
A benzophenanthridine is a tetracyclic heterocycle composed of a benzene ring fused with a phenanthridine residue, or any of a large number of alkaloids based on this substance.
What is ring residue in Woodward fiser rule of uv spectroscopy?
Ring residue in the Woodward-Fieser rule refers to the cumulative effect of additional rings in a molecule, which increases the absorption wavelength in UV spectroscopy. The presence of multiple ring structures leads to a red shift in the absorption maximum compared to a molecule with fewer rings. This phenomenon can be used to predict the absorption wavelength of conjugated systems based on the number and type of rings present in the molecule.
What is refinery residue?
What is refinery residue
What epidermal layer forms the bath tub ring?
The "bathtub ring" on the skin is primarily associated with the stratum corneum, the outermost layer of the epidermis. This layer consists of dead, flattened skin cells that can accumulate residue from water, soaps, and other substances, creating a visible ring. When skin is submerged in water, the stratum corneum can absorb moisture, leading to the formation of this ring upon drying.
Is salt a residue?
Salt (NaCl) is not a residue.
What might be the residue?
A residue is something left over. Fires usually leave a residue of ash.
What is a sentence with the word residue?
The oily residue was sent to the lab for examination.Go and wash that residue off your hands.
How do you spell residue?
That is the correct spelling of the word "residue" (remaining, as of a spilled material).
How do you clean a silver ring dropped in Clorox?
To clean a silver ring dropped in Clorox, soak it in a bowl of water mixed with baking soda for a few hours. After soaking, gently scrub the ring with a soft-bristled brush to remove any remaining residue. Rinse the ring thoroughly with water and dry it completely before wearing.
