Ethylene glycol is not a non polar molecule why it is soluble in water and ethanol

There is a general theorem: lower alcohols can be mixed with water in any ratio, while higher alcohols can hardly be mixed with water, because hydrogen bonds can be formed between the hydroxyl groups in lower alcohols and the hydroxyl groups in water, so they are miscible with each other.

Is it soluble in water because of hydrogen bond or hydroxyl group? Isn't that a truth? Because of the hydroxyl group, there are hydrogen bonds.

Ethylene glycol is a polar molecule.

Chemically it is non-polar, but you can look at the bat model and forget that the angle of the carbon bond is 109°28, which is impossible to ...... symmetrically

The principle of similarity and dissolution.

It refers to the solvent composed of polar molecules that is easily soluble in the solvent composed of polar molecules and insoluble in the solvent composed of non-polar molecules due to the electrical interaction between polar molecules; The solute composed of non-polar molecules is easily soluble in solvents composed of non-polar molecules, and the solvents composed of polar molecules are insoluble. The spatial structure doesn't have much to do with it.,It's just a functional group with the base.。

of the connected ......In addition, similarity and dissolution are only an empirical theorem, which has not been fully demonstrated.

Ethanol. Structural asymmetry but still compatible? Didn't you also say that hydrogen bonding, the hydroxyl group and water form hydrogen bonds, which are hydrophilic groups, so they are soluble.

Polar molecules. The electronegativity (i.e., the ability to attract electrons) is different between -OH and C, and the electronegativity of oxygen is stronger than that of carbon (the compounds formed by oxygen are more easily ionized), so the electrons are biased towards -OH, so that the density of the electron cloud on -OH increases, and H on -OH is almost only the nucleus, forming hydrogen bonds with the electrons on other -OH.

The principle of similarity and dissolution. So it is easily soluble in water and ethanol. And there are two hydrophilic groups, which are more soluble in water than ethanol.

Ethanol can be understood Ethylene glycol is better understood, like ether CH3-O-CH3 which is a polar bond polar molecule. I can't imagine it. It doesn't matter if it's asymmetrical, it's not necessarily polar if it's symmetrical.

Because the ethylene glycol molecule is a single bond that can rotate freely, the hydrogen on the hydroxyl group can form an intramolecular hydrogen bond with another hydroxyl oxygen in the molecule, so that its conformation is overlapping, and the molecule is not symmetrical and has a dipole moment. Soluble in water is soluble because the hydroxyl group of ethylene glycol and water form hydrogen bonds. The principle of similarity compatibility is an empirical law with no obvious boundaries, and generally speaking, those with similar structures are easy to miscible with each other.

Polar and polar miscibility, non-polar and non-polar miscibility. The molecular asymmetry of ethanol should be more soluble in water because of the large intermolecular orientation force, but in fact, it is mainly because of the formation of hydrogen bonds, and the solubility is good.

The structural formula of ethylene glycol is Ho-CH2CH2-OH, which is a non-polar molecule, and its soluble in water is due to its hydrophilic group-OH

Is it that polar molecules have no absolute relationship with pair asymmetry, and besides, the molecules are zigzag, how can they be symmetrical?It is soluble in water because of the hydroxyl group, because the structure of water is h-oh, which is called similar dissolution. Hydrogen bonds are linked to the boiling point.

The water molecule is polar, containing -OH, and the ethanol analysis is the same as above. Similarity and dissolution should consider polarity, functional groups, and other factors.

Ethylene glycol is not a non-polar molecule, so it can form hydrogen bonds with water and ethanol, and the solubility increases significantly.

Just like why ethanol is soluble in water, ethanol is soluble in water and is maintained by hydrogen bonds, while ethylene glycol has one more hydroxyl group than ethanol, producing polyhydrogen bonds, which are more soluble in water. The dissolution of ethylene glycol in ethanol is basically understood as similar dissolution.

It is polar and larger than ethanol, and the polarity is similar and soluble.

Because there is a hydroxyl group in the molecule, the hydroxyl group is a hydrophilic group, so it is soluble in water, and as for soluble in ethanol, it is similar and compatible.

Ethylene glycol hydroxyl can form hydrogen bonds with water and ethanol, and the solubility increases significantly.

Ethanol. is a polar molecule because of oElectronegativityThe electronegativity is greater than c, and the electrons are shifted so that the centers of the positive and negative charges do not coincide

The ethanol molecule is composed of three atoms, C, H, and O (composed of two parts, ethyl and hydroxyl groups), which can be regarded as ethane.

One hydrogen atom in a molecule.

The products that are substituted by the hydroxyl group can also be seen as water molecules.

The product of one hydrogen atom being substituted by an ethyl group.

The centers of positive and negative charges in the molecule do not coincide, and the distribution of the charges is uneven and asymmetrical from the perspective of the whole molecule, and such a molecule is a polar molecule with polar bonds.

The bound diatomic molecule must be a polar molecule, and the polyatomic molecule bound by polar bond depends on the structural condition.

Judgment of non-polar molecules:

Valency method: The composition is an ABN type compound, and if the valency of the central atom A is equal to the ordinal number of the group, the compound is a non-polar molecule. Such as: CH4, CCL4, SO3, PCL5, etc.

Force Analysis:

If the bond angle (or spatial structure) is known, the force analysis can be performed, and the resultant force of 0 is a non-polar molecule. Such as: CO2, C2H4, BF3, etc.

Diatomic molecules made up of the same kind of atoms are all non-polar molecules.

Either a non-polar molecule is a polar molecule.

The polarity of water is large;

h-oh;c2h5-oh；

Water is a hydroxyl group attached to the hydrogen atom, which is a neutral group, i.e., does not repel electrons and does not attract electrons; The hydroxyl group is the electron-withdrawing group;

The ethyl group in ethanol is an electron-repellent group, which repels electrons, while the hydroxyl group withdraws electrons, so it is more balanced and stable (in other words, the oxygen atom is satisfied, the electrons are saturated, and thus the electron-withdrawing ability is lost), and the polarity is smaller;

If you have any questions, please ask!

Water is highly polar and water is the most polar solvent.

Can you understand that ethanol is equivalent to one hydrogen in water being replaced by an ethyl group? It is clear that ethyl tends to have a more non-polar structure than hydrogen.

How to say it First of all, explain polarity Polarity refers to the bias imbalance of common electron pairs in a covalent bond ok?

Why is the polarity of water large Look at the structure Ho-H ethanol C2H5O-H The electronegativity of hydroxide is greater than that of C2H5O-, so its oh common electrons deviate greatly from O, so the polarity hits Probably like this, you don't understand that you are asking.

The polarity of water is stronger than that of ethanol.

Ethanol is a polar molecule. The molecular structure of ethanol is C2H5OH and consists of a hydroxyl group (-OH) and an ethyl group (-C2H5). The hydroxyl group is a polar group with a charge and has a pronounced polarity, whereas the ethyl group is a non-polar group and is not polar.

Since there is a hydroxyl group in the ethanol molecule, the whole molecule also exhibits significant polarity. Ethanol has a high solubility in water and also has strong interactions with other polar molecules, which is due to its polar characteristics that allow it to perform hydrogen bonding and hydrophobic interactions with other polar molecules.

Apart from polarity, ethanol also has some other physicochemical properties. Here are some additional information about ethanol:

1.Boiling point and melting point: Ethanol is an organic substance with a boiling point and melting point of and, respectively. These physical properties make ethanol liquid at most room temperatures.

2.Density: Ethanol has a density of g cm, and at room temperature it is slightly lighter than water.

3.Oxidizing: Ethanol can be oxidized to acetaldehyde and acetic acid. In the presence of oxygen, ethanol is oxidized to acetaldehyde. In the presence of a stronger oxidizing agent, such as the acidic potassium permanganate, acetaldehyde is further oxidized to acetic acid.

4.Vapor pressure: The vapor pressure of ethanol increases with increasing temperature. At room temperature, the vapor pressure of ethanol is mmHg, which means that its vapor pressure is much less than atmospheric pressure, so it can exist in a liquid state at room temperature.

5.Solubility: Ethanol is a hydrophilic molecule, so it can be dissolved in water.

At 20 m, the solubility of ethanol and water is g 100 ml. Compared to non-polar solvents such as n-hexane and petroleum ethers, ethanol has a much higher solubility in these solvents.

Polarity.

Because of the electronegativity of O.

The electronegativity is greater than c, and the electrons are shifted so that the centers of the positive and negative charges do not coincideEthanol.

The molecule is composed of three atoms, C, H, and O (composed of two parts, ethyl and hydroxyl groups), which can be regarded as the product of a hydrogen atom in the ethane molecule being replaced by a hydroxyl group, or it can be regarded as a water molecule.

The product of one hydrogen atom being substituted by an ethyl group.

Precautions for ethanol use.

The containers for receiving, temporary storage and use must be reliably sealed, and it is strictly forbidden to use containers without lids. Pay attention to indoor ventilation before use. When using alcohol indoors, it is necessary to ensure that the room is well ventilated.

Do not use alcohol near fire or heat. Before use, thoroughly remove flammable and combustible materials within 20 meters of the area of use (alcohol dripping on the ground). The ignition point of alcohol is low, and it is easy to spontaneously ignite when exposed to fire and heat; To disinfect the surface of electrical appliances, the power should be turned off first, and then carried out after the electrical appliances are cooled; If you wipe the kitchen stove with alcohol, turn off the fire first to avoid deflagration caused by the volatilization of alcohol.

The above content refers to Encyclopedia-Ethanol.

The charge centers of ethanol molecules cannot overlap and the structure is asymmetrical, so ethanol is a polar molecule.

Molecular structure: C and O atoms are bonded with sp hybrid orbitals, polar molecules.

The ethanol molecule is composed of three atoms (C, H, and O) (ethyl and hydroxyl groups), which can be regarded as the product of a hydrogen atom in an ethane molecule being replaced by a hydroxyl group, or as a product of a hydrogen atom in a water molecule being replaced by an ethyl group.

The positive and negative charge centers in the molecule do not coincide, from the whole molecule, the distribution of charges is uneven and asymmetrical, such a molecule is a polar molecule, a diatomic molecule bound by a polar bond must be a polar molecule, and a polyatomic molecule bound by a polar bond depends on the structural situation.

A non-polar molecule is a molecule with a dipole moment = 0, that is, a molecule in which the atoms are covalently bonded together, the charges in the molecule are evenly distributed, and the centers of positive and negative charges coincide. When all the bonds in the molecule are non-polar, the molecule is non-polar (except O3). When the bonds in a molecule are exactly the same, they are all polar bonds, but the configuration of the molecule is symmetrical, then the molecule is nonpolar.

They can form intermolecular hydrogen bonds with water molecules, which increases their solubility in water. In addition, although methyl, ethyl and propyl are hydrocarbon groups, they belong to hydrophobic groups, but they are not large, and the water repellency effect is not obvious.