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Propanol can produce hydrogen bonds in water.
Hydrogen bonds are usually formed when the substance is in a liquid state, but can sometimes continue to exist in some crystalline or even gaseous substances after they have been formed. For example, hydrogen bonds are present in HF in gaseous, liquid, and solid states. There are many substances that can form hydrogen bonds, such as water, hydrates, ammonia, inorganic acids, and certain organic compounds.
The presence of hydrogen bonds affects certain properties of matter.
Melting point, boiling point.
When substances with intermolecular hydrogen bonds are melted or vaporized, in addition to overcoming the pure intermolecular forces, the temperature must also be increased and an additional amount of energy must be used to break the intermolecular hydrogen bonds, so the melting and boiling points of these substances are higher than those of the same series of hydrides.
Hydrogen bonds are formed within the molecule, and the melting and boiling points are often reduced. Because the melting point of a substance is related to the intermolecular forces, if hydrogen bonds are formed within the molecules, then the corresponding intermolecular forces will be reduced, and the intramolecular hydrogen bonds will reduce the melting and boiling point of the substance. For example, o-nitrophenol with intramolecular hydrogen bonds has a lower melting point (45) than those with intermolecular hydrogen bonds (96) and para-melting points (114).
Solubility. In polar solvents, if hydrogen bonds can be formed between the solute molecules and the solvent molecules, the solubility of the solute increases. The solubility of HF and NH3 in water is relatively large, which is why it is for this reason.
Viscosity. Liquids with hydrogen bonds between molecules are generally more viscous. For example, polyhydrol compounds such as glycerin, phosphoric acid, and concentrated sulfuric acid are usually viscous liquids due to the numerous hydrogen bonds that can form between molecules.
Density. Hydrogen bonds between liquid molecules can lead to association, such as liquid HF, where under normal conditions there are complex molecules (HF) N linked together by hydrogen bonds in addition to normal simple HF molecules. nhf(hf)n 。
where n can be 2, 3, 4.... This phenomenon of several simple molecules joining together to form complex molecules without changing the chemical properties of the original substance is called molecular association. The result of molecular association affects the density of the liquid.
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A: Because the hydroxyl group is a hydrophilic group, it can form hydrogen bonds with water molecules, thereby increasing its solubility in water.
Bonding principle: —o—h .... o
The hydrogen atom in the hydroxyl group and the oxygen atom in the water form hydrogen bonds.
The common hydrophilic groups mainly include hydroxyl groups, carboxyl groups, etc.
Alkanes (alkyl groups) are hydrophobic groups, and according to the principle of similarity compatibility, alkanes (alkyl groups) are organic substances and water is inorganic substances, so they are incompatible.
When the hydrophilic group and the hydrophobic group exist at the same time, see who has a greater effect.
To this question, propanol and propane.
Propane is water-repellent, the propyl group in propanol is water-repellent, and the hydroxyl group is hydrophilic, so propanol is more water-soluble than propane.
I hope you understand, and feel free to ask.
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The OH hydroxyl group is a hydrophilic group and the alkyl group is just the opposite and is hydrophobic.
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Summary. Propanol is soluble in water while glycerol is insoluble in water Propanol (ethanol) is soluble in water because there is a hydrogen atom in the carbon chain, which can be combined by the positive and negative ions of water to obtain sufficient solubility. Whereas, glycerol (glycerol) is insoluble in water because it has three hydrogen atoms and does not have enough charge and binding capacity to bind to water molecules, and water molecules cannot acquire sufficient solubility.
Why is propanol soluble in water but not in water?
Propanol can be soluble in water, while propyl alcohol (ethanol) can be dissolved in water, because there is a hydrogen atom in the carbon chain, which can be combined by the positive and negative ions of water to obtain sufficient solubility. Glycerol (ethylene glycol), on the other hand, is insoluble in water because it has three hydrogen atoms and does not have enough charge and binding capacity to bind to water molecules, and water molecules cannot obtain sufficient solubility.
Ethanol and concentrated sulfuric acid at 170 o'clock to eliminate the reaction, at this time the role of sodium hydroxide is to remove impurities, what impurities are removed.
The function of sodium hydroxide is to remove hydrogen sulfide and chloride sulfuric acid produced by the reaction of ethanol and concentrated sulfuric acid. At the same time, it can also remove other impurities in the reaction system that do not participate in the reaction and cause reaction chaos, such as nitric acid, bromide, etc.
The nitric acid here comes from **.
Kiss nitric acid is not produced in this reaction, it is just an example, hydrogen sulfide and sulfuric acid are produced in this reaction.
How to pronounce this substance.
Hello, this is butyric acid, as well as his isomers, ethyl acetate, propyl formate, etc.
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Summary. Kiss <>
Related Expansion: Propylene glycol is a colorless, odorless, sweet organic compound with the chemical formula C3H8O2, also known as 1,2-propanediol or 1,2-propanediol ether. It is an important chemical raw material and industrial solvent, which is widely used in food, medicine, cosmetics, dyes and other industries.
Propylene glycol can be prepared by the hydrolysis of propylene oxide, and can also be obtained by propane oxidation, petrochemical method, etc. It has good solubility and can be soluble in solvents such as water, ethanol, glycerin, benzene, and dichloroethane. In addition, propylene glycol can also react with many chemicals, such as reaction with anhydride to form esters, reaction with carboxylic acids to form carboxylic esters, etc.
In the food sector, propylene glycol is widely used as a sweetener, preservative, and humectant, among others. In the pharmaceutical sector, it is used as a basic ingredient in the manufacture of oral liquids or injections for human beings. At the same time, propylene glycol is also used in cosmetics as a moisturizer and viscous agent.
Propylene glycol also has good physical and chemical properties, and can be used in industrial applications such as preparations in dyes, car paint materials, and lubricants. Propylene glycol is a versatile and versatile chemical that is used in many fields and has important economic and social value. <>
<>Is propylene glycol soluble in dichloroethane?
Kiss <>
Glad to answer your key lead Oh, propylene glycol can be soluble in dichloroethane. Dichloroethane is a solvent of Nianliang Zheng Organic Song, which has a certain polarity, and propylene glycol is also a highly polar organic compound, so it can be soluble in dichloroethane. <>
Kiss <>
Related Expansion: Propylene glycol is a colorless, odorless, sweet organic compound with the chemical formula C3H8O2, also known as 1,2-propanediol or 1,2-propanediol ether. It is an important chemical raw material and industrial solvent, which is widely used in food, medicine, cosmetics, dyes and other industries.
Propylene glycol can be prepared by the hydrolysis of propylene oxide, and can also be obtained by propane oxidation, petrochemical method, etc. It has good solubility and can be dissolved in solvent wheels or beams such as water, ethanol, glycerin, benzene, and dichloroethane. In addition, propylene glycol can also react with many chemicals, such as reaction with anhydride to form esters, reaction with carboxylic acids to form carboxylic esters, etc.
In the food sector, propylene glycol is widely used as a sweetener, preservative, and humectant, among others. In the field of medicine, it is used as a basic ingredient in the manufacture of oral liquids or injections in the human body. At the same time, propylene glycol is also used in cosmetics as a moisturizer and viscous agent.
Propylene glycol also has good physical and chemical properties, and can be used as a preparation in dyes, car paint materials and lubricants and other industrial uses. Propylene glycol is a versatile and versatile chemical that is used in many fields and has important economic and social value. <>
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Summary. Acetone has a stronger solubility than isopropanol because acetone has stronger hydrogen bonding, while isopropanol has no hydrogen bonding. Hydrogen bonding is a special chemical bond, which is formed by the interaction between one hydrogen atom and another atom, and it acts more strongly than other chemical bonds, so acetone has a stronger solubility than isopropanol.
The solution to this problem is to first understand the concept of hydrogen bonding, which is a special type of chemical bond that is formed by the interaction between one hydrogen atom and another atom, and it acts more forcefully than other chemical bonds. Secondly, to understand the structure of acetone and isopropanol, acetone has a stronger hydrogen bonding effect, while isopropanol has no hydrogen bonding effect, so acetone has a stronger solubility than isopropanol. Finally, to understand the concept of solubility, solubility refers to the solubility of the solute in the solvent and it depends on the interaction force between the solute and the solvent, so the solubility of acetone is stronger than isopropanol.
Acetone has a stronger solubility than isopropanol because acetone has stronger hydrogen bonding, while isopropanol has no hydrogen bonding. Hydrogen bonding is a special chemical bond, which is formed by the interaction between one hydrogen atom and another atom, and its force is stronger than that of other chemical beams and bonds, so the dissolution force of acetone is stronger than that of isopropanol. The solution to this problem is to first understand the concept of hydrogen bonding, which is a special type of chemical bond that is formed by the interaction between one hydrogen atom and another atom, and it acts more forcefully than other chemical bonds.
Secondly, to understand the structure of acetone and isopropanol, acetone has a stronger hydrogen bonding effect, while isopropyl rubber touches alcohol without hydrogen bonding effect, so acetone has a stronger solubility than isopropanol. Finally, to understand the concept of solubility, solubility refers to the solubility of the solute in the solvent, it depends on the interaction between the solute and the solvent, so the solubility of acetone is stronger than that of isopropanol.
Can you add, I don't quite understand it.
The solubility of acetone is stronger than that of isopropanol, mainly due to the difference in the molecular structure of the two. Acetone is a three-carbon hydrocarbon that contains one carbon atom in its molecule, whereas isopropanol is a two-carbon hydrocarbon that contains only one carbonprotobeam and talker in its molecule. Because the acetone molecule contains a carbon atom, its molecular structure is larger than that of isopropanol, and it is easier to interact with the solvent molecule rubber, so that the solubility of acetone is stronger than that of isopropanol.
In addition, there is also an oxygen atom on the carbon atom in the acetone molecule, which makes the acetone molecule possess more electron pairs, thus making it easier for its molecule to interact with the solvent molecule, thus making acetone more soluble than isopropanol. In addition, the oxygen atom in the acetone molecule can also interact with the hydrogen atom in the solvent molecule, so that the solubility of acetone is stronger than that of isopropanol. In conclusion, the solubility of acetone is stronger than that of isopropanol, mainly due to the difference in the molecular structure of the two, the acetone molecule contains one carbon atom and one oxygen atom, which makes the acetone molecule possess more electron pairs, thus making it easier for its molecule to interact with solvent molecules, thus making acetone more soluble than isopropanol.
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PropanolPhenolBitremor acrylicPropane。Reason: Propanol has O H bonds, water also has so similar soluble, although phenol also has O H bonds, butBenzene ringGiving electrons weakens its polarity, so it is inferior to propanol.
As for propylene and propane, because they do not have the solubility of the oh bond raft enamel catastrophic dog rubbing paralysis Shan Kai.
Very small. And because C is more polar than C C, propane is more insoluble than propylene according to the principle of similar solubility, but there is almost no difference between the two.
Chemical properties of propane.
At low temperatures, it is easy to form solid hydrates with water, causing blockage of natural gas pipelines. Propane at higher temperatures with excess chlorine.
to form carbon tetrachloride.
and perchloroethylene Cl2c = Ccl2.
in the gas phase with nitric acid.
to generate a mixture of 1-nitropropane CH3CH2CH2NO-nitropropane (CH3)2CHNO2, nitroethane CH3CH2NO2 and nitromethane CH3NO2.
The above content refers to Encyclopedia – Propane.
Encyclopedia – Acrylic.
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Propanol has a hydroxyl group that can be bonded with water into hydrogen bonds, and can be arbitrarily miscible with water.
The polarity of each bond of propane is not large, and it can neither form hydrogen bonds with water, nor can it form solvation with water with polarity, so it is insoluble in water.
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The melting and boiling point of alcohols is higher than that of alkanes, so propane has the lowest melting and boiling point;
The more carbon atoms in a monoalcohol, the higher its melting and boiling point, so the melting and boiling point of propanol is ethanol;
In the alcohol with the same carbon atom, the more the number of alcohol hydroxyl groups, the higher the melting and boiling point, so the melting and boiling point of glycerol "1,3-propanediol" 1-propanol, through the above analysis, it is known that the order of the melting and boiling points of these substances is > Therefore, C is chosen
Personally, I think that cold water gives people a cold and cold feeling, and warm water will make you feel like you don't want to swallow it when you get to your mouth, so cold water tastes better and more acceptable than warm water.
There is an error in the above!
Let's know a few concepts first! Water, with the molecular formula H2O, the simplest oxide, is an inorganic substance, (not to mention the physical properties, everyone knows it); "Oil" must be organic, we have countless common types of oil, but the molecular formula can be expressed by the general formula (CH2O)N, which is a derivative of hydrocarbons. Unsaturated hydrocarbons are common. >>>More
What is the difference between a man and a woman's loyalty to their feelings?
The main thing is that women always dress thinner than men.
No, not so absolutely.