Why CO is insoluble in water while CO2 is insoluble in water

At first glance, it seems to be compatible with similarity; But in fact, similarity and compatibility are only a very empirical rule, with many exceptions; The dissolution process of a substance is usually considered to be a physical change, but it should actually be a physical-chemical change, because for example, NaCl dissolves in water and ionizes into Na+ and Cl-, but in fact sodium hydrate ions and chloride hydrate ions are generated; The same is true for the dissolution process of CO and CO2; Let's talk about CO2 first, there is a weak ionization of water, into H+ and OH-, as long as a process can occur spontaneously, then there must be factors that make the system energy go in a lower direction, due to the presence of ions, then if the electric field force does positive work, the system energy will be reduced; There is no substance that is absolutely insoluble in water, so some CO2 will exist in the form of molecules in aqueous solution; At the same time, because the positive and negative charges attract each other, H+ is easy to attack the slightly negative O in CO2, so it becomes O=C-O-H, at this time, OH- will come to bond with C, in order to prevent C from having a positive charge and the energy of the system increases, then carbonic acid is generated, and carbonic acid will ionize H+ and HCO3-, so that the equilibrium moves to the positive direction, and the solubility of CO2 is relatively increased, but because carbonic acid is a weak acid, the dissolution process quickly reaches equilibrium, and it is generally considered that CO2:H2O=1:1 solubility; Then it is said that Co, since there are three bonds in Co, in addition to the two C-O sigma bonds, there is also a covalent bond formed by O providing the pair electron alone and C providing the empty P orbital, making C slightly negative; At this time, H+ tends to combine with C, and at the same time, OH- will be connected to O, forming H-C-O-OH, obviously because O is connected to the hydroxyl group, the middle C O does not meet the 8-electron stable structure, so the hydration process is unfavorable in terms of energy, because the triple bond energy between C=O is very high, and it is necessary to provide a lot of energy to destroy, so Co is not hydrated, and Co cannot form a strong hydrogen bond, so Co is insoluble in water.

That is to say, CO is basically insoluble in water, and CO2 is only a small part soluble in water, that is, 1L of water can only be dissolved in 1LC2 ---

Similar and dissolving. General Polar Dissolution Polarity Non-polar Dissolution Non-polar. 1lCO2 dissolved in 1L water.

This question is not right, carbon monoxide is insoluble in water, and carbon dioxide is easily soluble in water.

CO is insoluble in water. In terms of physical properties, CO has a melting point of -205 degrees Celsius and a boiling point of Celsius, and it is insoluble in water. Although the solubility of CO in water is 20 degrees Celsius, in the field of chemistry, it is stipulated that if the solubility of a substance is less than grams, it is considered insoluble in water, and the solubility of CO is less than grams, so CO is insoluble in water.

Nature:

Carbon monoxide is a colorless, odorless, and odorless gas, but it is very harmful to the human body when inhaled. It will combine with hemoglobin to form oxyhemoglobin, which cannot supply oxygen to the body's tissues. This condition is called hypoxia in the blood.

Concentrations of up to 667 ppm may cause up to 50% of human hemoglobin to be converted to carboxylhemoglobin, leading to coma and death.

The above content reference: Encyclopedia - carbon monoxide.

The solubility of CO2 in water is.

CO2 is carbon dioxide, because a volume of carbon dioxide dissolved in water can dissolve a volume of carbon dioxide, so the dissolution of dioxic purified carbon and water is one to one, and the solubility is not large. The solubility of carbon dioxide in water is gram liters at room temperature and constant pressure.

CO2 processing method:

At present, the most common dry cleaning technology is to use hydrocarbons (petroleum) and chlorinated hydrocarbons (such as perchloroethylene) as solvents. However, petroleum solvents have low flash points, are explosive and flammable, and dry slowly. Chlorinated hydrocarbons have a pungent odor and are highly toxic (generally limited to less than 50 ppm in the air).

The dry cleaning industry, especially in some countries in Europe and the United States, has been looking for a clean, hygienic, safe and efficient washing solvent, and the latest coal has launched new cleaning agents such as green earth, rynex, and liquid carbon dioxide. GreenEarth is a clear and odorless liquid, with a kb value (wash rate) close to that of petroleum solvents, but low in the ground of perchloroethylene, and **expensive. The KB value of RYNEX is about the same as that of perchloroethylene, but the water content is higher, and the evaporation is too slow, it is not easy to regenerate and **, and the dry cleaning cycle is long.

The liquid carbon dioxide KB value is higher than that of petroleum solvents, slightly lower than perchloroethylene, but it is better than perchloroethylene in terms of bleeding, anti-fouling reagglutination, etc. <>

Carbon dioxide is soluble or soluble.

Carbon dioxide is 1 to 1 solubility of trapped water. The 0 point 1 below is insoluble or insoluble, 0 point 1 to 1 is slightly soluble, 1 to 10 is soluble or soluble, 10 to 100 is soluble, and more than 100 is extremely soluble.

Carbon dioxide is a colorless, odorless, and odorless gas at room temperature. The formula is 44.01, one of the carbon oxides, commonly known as carbonic acid, also known as carbonic anhydride or carbonic anhydride. At room temperature, the density is slightly greater than that of air, and carbonic acid is formed.

Solid carbon dioxide, commonly known as dry ice, can absorb a lot of heat during sublimation, so it is used as a refrigerant, such as artificial rainfall, and is also often used in stage art to create smoke. Feast.

The solubility of carbon dioxide (CO2) in water is affected by temperature and pressure. In general, as the temperature increases and the pressure increases, the solubility of carbon dioxide in water decreases.

Here are some general trends in the solubility of carbon dioxide in water at different temperatures and pressures:

1.Effect of temperature on solubility:

At room temperature, the solubility of carbon dioxide in water decreases as the temperature increases. In other words, rising temperatures cause carbon dioxide to be released from water. Volt code.

This is because at higher temperatures, the thermal motion of water molecules accelerates, which weakens the adsorption between water molecules and carbon dioxide molecules, thereby reducing the solubility of carbon dioxide molecules in water.

2.Effect of pressure on solubility:

The increased pressure increases the interaction between carbon dioxide molecules and water molecules, making it easier for carbon dioxide molecules to dissolve in water.

It is important to note that the solubility of carbon dioxide in water is also affected by other factors, such as the pH of the solution and the presence of other solutes. In addition, the exact solubility value can be determined based on a specific temperature and pressure reference solubility table.

CO2 dissolution reaction: CO2+ H2O H2CO3

H2CO3 is further ionized in water: H2CO3 H(+)HCO3(-).

Saturation of NaHCO3 means that HCO3(-) dissolves to the maximum, which effectively inhibits the forward progress of the above two reversible reactions, and objectively shows that CO2 cannot continue to dissolve.

Insoluble in water.

Because the polarity of CO is very small, the polarity of H2O is very large, and the dissolution of CO in H2O is very small according to the principle of similarity dissolution. Carbon monoxide, a carbon oxide, with the chemical formula CO and molecular weight, is usually a colorless, odorless, and tasteless gas.

Carbon monoxide

Chemical Properties: The carbon monoxide molecule is an unsaturated metastable molecule that is chemically stable in terms of decomposition. At room temperature, carbon monoxide does not react with acids and alkalis, but it can form a first-class mixture when mixed with air, and can cause combustion when exposed to open flames and high temperatures, which is a flammable and explosive gas.

Because the valency of carbon in the carbon monoxide molecule is +2, it can be oxidized to +4 valence, which is reducible.

Under different reaction conditions and catalysts, carbon monoxide hydrogenation can synthesize a variety of organic compounds. Under certain conditions, moles such as carbon monoxide and water vapor react to produce hydrogen and carbon dioxide. Due to the strong carbon-oxygen bonds in the carbon monoxide molecule, which requires a high activation energy, carbon monoxide cannot actually be catalytically decomposed.

The above content reference:Encyclopedia – Carbon Monoxide

Carbon dioxide is a colorless, odorless, non-combustible, non-flammable gas at room temperature, with a density greater than air, soluble in water, and reacts with water to form carbonic acid. At room temperature and pressure, carbon dioxide is soluble in water (1:1 ratio of the two), but the solubility is not large, because the carbon dioxide produced is extremely unstable, so the solubility is not large, and it is not easy to dissolve in water.

Carbon dioxide can be dissolved in water at room temperature, and its solubility decreases with the increase of temperature and increases with the increase of pressure.

co is soluble in water because 1 volume of co is dissolved in 1 volume of water. And the solubility of the gas increases with the increase of pressure and decreases with the increase of temperature.