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Esterification involves the reaction between a carboxylic acid and an alcohol to form an ester, with the release of water. In a basic medium, the presence of hydroxide ions can deprotonate the carboxylic acid, converting it into a carboxylate ion. This carboxylate ion is not reactive towards alcohol to form an ester, preventing esterification from occurring in basic conditions.
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What is the ratio of equivalent weight of kmno4 in acidic and basic and neutral medium?
The ratio of equivalent weight of KMnO4 in acidic to basic medium is 1:2:5. In acidic medium, KMnO4 reacts as MnO4^- + 8H+ + 5e^- → Mn^2+ + 4H2O, requiring 5 equivalents, whereas in basic medium, it reacts as MnO4^- + 2H2O + 3e^- → MnO2 + 4OH^-, requiring 2 equivalents. In neutral medium, the equivalent weight is the same as in basic medium.
Why do you do a precipitation titration in a basic medium?
Precipitation titrations are often performed in a basic medium to ensure that the precipitate formed is insoluble and does not redissolve. The basic medium helps to keep the hydroxide ions from interfering with the precipitation reaction, allowing for more accurate and reliable results.
Why phenolphthalein get colour on basic medium?
Phenolphthalein is colorless in acidic solutions but turns pink or purple in basic solutions because the hydroxide ions in the basic medium react with phenolphthalein to form a pink-colored compound. This color change is due to a shift in the chemical structure of phenolphthalein when exposed to a basic environment.
Is condensation the same as esterification?
No, condensation and esterification are not the same. Condensation is a chemical reaction in which two molecules combine with the loss of a small molecule (like water), while esterification is a specific type of condensation reaction between an alcohol and a carboxylic acid to form an ester and water.
What is the purpose of adding sodium carbonate in esterification?
Sodium carbonate is added in esterification reactions to act as a catalyst for the reaction. It helps to speed up the esterification process and increase the yield of the desired ester product. Additionally, it helps to neutralize any acidic byproducts generated during the reaction.
What is esterification of sugar?
Probably when you take a sugar with alcohol components (-OH), turn them into O- ions by using a basic conditions (say NaOH) and then alkalizing them to form esters (say CH3I). That would replace all alcohols with (-OCH3 esters). "esterification of sugars"
Meaning of esterification?
esterification is the formation of esters between the reaction of alkanol and alkanoic acid
What is the ratio of equivalent weight of kmno4 in acidic and basic and neutral medium?
The ratio of equivalent weight of KMnO4 in acidic to basic medium is 1:2:5. In acidic medium, KMnO4 reacts as MnO4^- + 8H+ + 5e^- → Mn^2+ + 4H2O, requiring 5 equivalents, whereas in basic medium, it reacts as MnO4^- + 2H2O + 3e^- → MnO2 + 4OH^-, requiring 2 equivalents. In neutral medium, the equivalent weight is the same as in basic medium.
What type of waves occur when the motion of the medium is parallel to the direction of the wave?
Longitudinal waves occur where the motion of the medium is parallel to the waves.
What is singular possessive form of medium?
The possessive form of the singular noun medium is medium's.example: The medium's dire prediction did not occur.
Why do you do a precipitation titration in a basic medium?
Precipitation titrations are often performed in a basic medium to ensure that the precipitate formed is insoluble and does not redissolve. The basic medium helps to keep the hydroxide ions from interfering with the precipitation reaction, allowing for more accurate and reliable results.
How do you write esterification equations?
Esterification Reaction: When an alcohol ( mostly primary) alcohol is treated with carboxylic acid in the presence of H2 SO4 sweet smelling compound is formed which is called ester. The reaction is know as esterification reaction.
Why can't conduction and convection occur in space like radiation?
Conduction and convection require a medium to transfer heat, but space is a vacuum so there is no medium for these processes to occur. Radiation, on the other hand, can occur in the vacuum of space because it does not need a medium to transfer heat energy.
Why phenolphthalein get colour on basic medium?
Phenolphthalein is colorless in acidic solutions but turns pink or purple in basic solutions because the hydroxide ions in the basic medium react with phenolphthalein to form a pink-colored compound. This color change is due to a shift in the chemical structure of phenolphthalein when exposed to a basic environment.
What do you need for a wave to occur?
A medium and a pressure differential
Does the basic activities of life occur in a cell membrane or DNA?
Neither. The basic activities of life occur inside the cell
Between what two atoms do ester bonds occur?
Ester bonds occur between a carbon atom and an oxygen atom. Specifically, the bond is formed between the carbonyl carbon of a carboxylic acid and an oxygen atom of an alcohol in an esterification reaction.
