The ionic equation for the reaction of chemical SO2 with NaOH solution

SO2 is a weak reducing agent, which is dissolved in water to form sulfite H2SO3. Then the sulfurous acid reacts with NaOH to neutralize the acid and base. Sulfite H2SO3 ionization step, first ionization of bisulfite HSO3- and H+ If there is not enough base, then it is only enough to neutralize the H+ ionized in this step, only this part of the first ionization of H+ is neutralized into water, and the remaining salt with sodium is bisulfite HSO3-, so the resulting product is NaHSO3 and water, remove the water that was previously combined with SO2, the reaction formula is SO2 + NAOH=NaHSO3 When the base is enough, the H+ of the first step of ionization is removedare consumed, then the bisulfite HSO3- will be further ionized to generate hydrogen ions and sulfite, HSO3-=H+ + SO32-, the excess alkali will neutralize the H+ ionized in the second step, so the salt with sodium becomes sulfite SO32-, and Na2SO3 is generated, and the reaction formula is 2NaOH + SO2 = Na2SO3 + H2O ion reaction equation is:

2oh-+so2=so32-+h2o

There are two possibilities. When SO2 is small: SO2 + 2OH = SO3 2- +H2O

When there is an excess of SO2: SO2 + OH- = HSO3- (where "3" in "SO3 2-" is a subscript and "2-" refers to two negative charges.) "HSO3-" where "3" is a subscript, and "- is with a unit of negative charge)

The ionic equation for the reaction of sulfur dioxide and sodium hydroxide is: SO2+2OH(-)SO3(-)H2O.

Sodium hydroxide and sulfur dioxide produce NaSO3 and water, and the chemical equation is 2NaOH+SO2=Na2SO3+H2O. This reaction is actually divided into two steps, the first step is SO2 + H2O = H2SO3 and the second step is H2SO3 + 2NaOH = Na2SO3 + 2H2O.

A small amount of SO2 is introduced into the NaOH solution, which defeats the ion equation.

2oh- +so2=so32- +h2o

Excess SO2 is introduced into the NaOH solution, and the equation for the reaction is cleared from the dead orange.

oh- +so2 = hso3-

Hope it can help you

1. A small amount of sulfur dioxide is introduced into the equation and ion equation of sodium hypochlorite solution

H2O+SO2+3Cl-=SO4 2- +Cl- +2HCoH2O+SO2+3Naclo=Na2SO4 +NaCl +2HCO2, excess sulfur dioxide into sodium hypochlorite solution equation and ion equation:

h2o+so2+clo-=so4 2- +cl- +2h＋h2o+so2+naclo=h2so4 +nacl<>

In the case of a small amount of sulfur dioxide, the equation for the chemical reaction that occurs is as follows:

so₂+2naoh＝na₂so₃+h₂o

When sulfur dioxide is small, sulfur dioxide only reacts with sodium hydroxide to form sodium thiocylinite.

There are two methods for industrial production of sodium hydroxide: causticizing and electrolysis. The causticizing method is divided into soda ash causticizing method and trona causticizing method according to different raw materials; The electrolysis method can be divided into the separator electrolysis method and the ion exchange membrane method.

Since coal and oil usually contain sulfur, sulfur dioxide is formed when burned. When sulphur dioxide is dissolved in water, sulphurous acid is formed. If sulfurous acid is further oxidized under the present conditions, sulfuric acid (the main component of acid rain) will be formed quickly and efficiently.

This is one of the reasons for concerns about the environmental effects of using these fuels as an energy source.

Sulfur dioxide and sodium hydroxide reactions, you can write their reaction equations first, and then split them into ions, and finally divide the ions that do not involve the reaction from the equation. Sulfur dioxide plus hydroxide ions is equal to the sulfite ions plus water.

Sulfur dioxide. The ionic equation for the reaction with hydromotan sodium oxide.

is: SO2+2OH(-)SO3(-)H2O.

Sodium hydroxide and sulfur dioxide produce NaSO3 and water, focusing on the chemical equation.

is 2NaOH+SO2=Na2SO3+H2O. This reaction is actually divided into two steps, the first step is SO2+H2O=H2SO3, and the second step is H2SO3+2NaOH=Na2SO3+2H2O.

When there is a small amount of SO2.

In excess of 2OH- +SO2 = SO3)2- +H2OSO2, first 2OH- +SO2 = SO3)2- +H2O, then (SO3)2- +H2O + SO2= 2(HSO3)-

If you combine one to write it, oh- +SO2 = HSO3-