2nd November 2019

quora

13

Why is concentrated sulfuric acid a dehydrating agent?

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Sulphuric acid has a great affinity for water. It readily removes elements of water from other compounds i.e, it acts as a dehydrating agent, it being a hygroscopic substance absorb water from other substances without dissolving in it,so it is considered a good dessicating or drying agent.

Similarly one may ask, what is the purpose of concentrated sulfuric acid in esterification?

Esterification is a relatively slow process at room temperature and does not proceed to completion. Concentrated sulfuric acid is used as a catalyst, and has a dual role: Speeds up the reaction. Acts as a dehydrating agent, forcing the equilibrium to the right and resulting in a greater yield of ester.

What is the difference between a drying agent and a dehydrating agent?

A drying agent simply absorbs the moisture or water vapour that is present as an impurity or contaminant with the desired substance. It does not act as a reactant to produce a new substance by a chemical reaction, but simply as a purifier. A dehydrating agent, on the other hand, actually acts as a reactant.

Which acid is used as dehydrating agent?

The reverse of a dehydration reaction is a hydration reaction. Common dehydrating agents used in organic synthesis include concentrated sulfuric acid, concentrated phosphoric acid, hot aluminium oxide and hot ceramic.

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Why Sulfuric acid is a dehydrating agent?

Sulphuric acid has a great affinity for water. It readily removes elements of water from other compounds i.e, it acts as a dehydrating agent, it being a hygroscopic substance absorb water from other substances without dissolving in it,so it is considered a good dessicating or drying agent.

2

Is HCL a dehydrating agent?

Sulphuric can also act as a dehydrating agent: thus, used in organic condensation reactions like esterification. Hydrochloric acid, denoted as HCl, is a mineral acid, which is very strong and highly corrosive. This is a colorless, nonflammable liquid. It is stable, but readily reacts with bases and metals.

3

Why does sulfuric acid react with sugar?

It's the dehydration of sugar (sucrose) with sulfuric acid. The sulfuric acid removes water from the sugar in a highly exothermic reaction, releasing heat, steam, and sulfur oxide fumes. Aside from the sulfurous odor, the reaction smells a lot like caramel.

4

What is a drying agent used for?

A drying agent is a chemical used to remove water from an organic compound that is in solution. In making or isolating chemical compounds they often become contaminated with water. Drying agents can also be solid like Calclium chloride, Potassium chloride, or Magnesium sulfate.

5

What is the definition of dehydration synthesis?

Dehydration synthesis is the process of joining two molecules, or compounds, together following the removal of water. When you see the word dehydration, the first thing that may come to mind is 'losing water' or 'lacking water.' Dehydration synthesis is classified as a type of chemical reaction.

6

What is formed by dehydration synthesis?

The monomers combine with each other via covalent bonds to form larger molecules known as polymers. In doing so, monomers release water molecules as byproducts. This type of reaction is known as dehydration synthesis, which means “to put together while losing water.

7

What is condensation synthesis?

Condensation is a chemical process by which 2 molecules are joined together to make a larger, more complex, molecule, with the loss of water. It is the basis for the synthesis of all the important biological macromolecules (carbohydrates, proteins, lipids, nucleic acids) from their simpler sub-units.

8

How does condensation take place?

Condensation is the change of water from its gaseous form (water vapor) into liquid water. Condensation generally occurs in the atmosphere when warm air rises, cools and looses its capacity to hold water vapor. As a result, excess water vapor condenses to form cloud droplets.

9

Is dehydration and hydrolysis the same?

Hydrolysis Breaks With Water. Hydrolysis, which is the reverse of a dehydration reaction, works the same way. In these reactions, polymers are broken apart by adding a water molecule and separating the polymer back into monomers.

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What is the difference between dehydration synthesis and hydrolysis?

The difference between dehydration synthesis and hydrolysis is that in one, bonds are being formed, while in the other bonds are being destroyed. Dehydration synthesis bonds molecules together by removing water. In hydrolysis, water is added to the molecules in order to dissolve those bonds.

11

What is the hydrolysis reaction?

Hydrolysis is a reaction involving the breaking of a bond in a molecule using water. The reaction mainly occurs between an ion and water molecules and often changes the pH of a solution. In chemistry, there are three main types of hydrolysis: salt hydrolysis, acid hydrolysis, and base hydrolysis.

12

What is the hydrolytic enzymes?

Any of the enzymes or catalysts that act and behave like a hydrolase. Supplement. In biochemistry, a hydrolase is an enzyme that speeds up the hydrolysis of a chemical bond. For instance, a hydrolytic enzyme acts on the following reaction: A–B + H2O → A–OH + B–H.

13

What is a hydrolytic reaction?

Hydrolysis is a reaction involving the breaking of a bond in a molecule using water. The reaction mainly occurs between an ion and water molecules and often changes the pH of a solution. In chemistry, there are three main types of hydrolysis: salt hydrolysis, acid hydrolysis, and base hydrolysis.

14

What is meant by hydrolytic?

medical Definition of hydrolysis. : a chemical process of decomposition involving the splitting of a bond and the addition of the hydrogen cation and the hydroxide anion of water.

15

What are the products of the hydrolysis of ATP?

ATP hydrolysis is the catabolic reaction process by which chemical energy that has been stored in the high-energy phosphoanhydride bonds in adenosine triphosphate (ATP) is released by splitting these bonds, for example in muscles, by producing work in the form of mechanical energy.

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How does hydrolysis of ATP release energy?

ADP is combined with a phosphate to form ATP in the reaction ADP+Pi+free energy→ATP+H2O. The energy released from the hydrolysis of ATP into ADP is used to perform cellular work, usually by coupling the exergonic reaction of ATP hydrolysis with endergonic reactions.

17

What molecule has more energy ATP or ADP?

Energy is stored in the last high energy phosphate bond. Which has more energy: ATP or ADP? Explain. ATP because adp is missing a phosphate group and thus cannot carry as much energy as adenosine triphosphate.

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What is ADP energy?

When the third phosphate is removed from ATP, you get ADP, which stands for Adenosine Di Phosphate. With just 2 phosphates left, the molecule has much less chemical energy, because the high energy bond between the last 2 phosphates has been broken.

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How ATP is produced?

Glycolysis - begins glucose metabolism in all cells to produce 2 molecules of pyruvate. Occurs outside of mitochondria, usually in cytoplasm. Cellular Respiration - uses oxygen from the environment and converts each pyruvate to three molecules of carbon dioxide while trapping the energy released in this process in ATP.

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What is the purpose of sulfuric acid in the reaction?

Esterification is a relatively slow process at room temperature and does not proceed to completion. Concentrated sulfuric acid is used as a catalyst, and has a dual role: Speeds up the reaction. Acts as a dehydrating agent, forcing the equilibrium to the right and resulting in a greater yield of ester.

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