Degree of ionization of Na2SO4 and pH 5NaHSO4 water at pH 9

Analysis: 1) Na2CO3 solution with pH=9:

The total concentration of [H+] in the solution = 10 -9, the total concentration of [oh-] = 10 -5, the reaction equation:

CO3)2- +H2O HCO3- +OH- ( denotes reversible sign).

HCO3- +H2O H2CO3 + OH- ( denotes reversible sign).

The first step of hydrolysis is the main one, and the second part of hydrolysis is extremely weak.

The alkaline nature of the solution is entirely due to the production of OH- by hydrolysis.

[oh-] = [h+] = 10 -5 mol l ionized from water (salt hydrolysis promotes ionization of water).

2) NaHSO4 solution at pH = 5:

The total concentration of [H+] in the solution = 10 -5, the total concentration of [OH-] = 10 -9, and the reaction equation:

HSO4- SO4)2- +H+( denotes reversible symbol).

HSO4- is partially ionized, which can be understood as complete ionization in the middle school range.

The acidity of the solution is entirely due to the production of H+ by HSO4-ionization.

[OH-]=[H+]=10 -9 mol L ionized from water (acid and alkali ionization inhibits the ionization of water, and HSO4- can be regarded as a strong acid in the first element).

Regardless of the acidity or alkalinity of the solution, h(+) and oh(-) ionized by water are always equal;

pH = 9 solution, water ionized [h(+) = [oh(-)= 10 (-9) mol l

pH = 5 solution, water-ionized [H(+)=[OH(-)=10(-9)moll

Regardless of the solution, the answer is no different.

By the way, the presence of acids and bases always inhibits the ionization of water, and it is impossible to promote the ionization of water, because the ionization of water is inhibited as long as the concentration of h(+) and oh(-) in the solution is not equal.

Calculated by the ion product of water.

Na2SO4 with pH = 9 is the one that promotes water ionization.

pH = 5NaHSO4 is the inhibition of water ionization.

I guess you can figure it out for yourself!

The ionization equation for NaHSO4 in water is: NaHSO4=NA++H++SO42-.

Analysis: The ionization equation should be written according to the law of conservation of mass, that is, the number of atoms of the same element on the left and right sides is equal; At the same time, the reason why the solution is not electroelectric is that the total amount of positive electricity carried by the cation and the total amount of negative charge carried by the anion are equal.

The charged number of ions is equal to the valency value of the element or atomic cluster. Note: When ionized, the clusters of atoms generally form charged ions without separating.

nahso4=na++h++so42-；Because bisulfate can also be ionized in water: HSO4-=H++SO42-.

Chemical Properties:

1. Salt attributes: acid salts with strong acids.

2. Acidity and alkalinity: the aqueous solution is acidic. Strong electrolyte, completely ionized, produces a strong acidic solution NaHSO4=Na++H++SO42-.

Note: Bisulfate is not completely ionized and is a medium-strong acid. (High school textbooks refer to bisulfate as completely ionized.)

Therefore, it can react with alkalis. nahso4+naoh==na2so4+h2o。

is nahso4=na++hso4. The ionization equation for NaHSO4 in water is: NaHSO4=NA+ +H+ +SO4(2-).

In addition, the ionization equation of sodium bisulfate in the molten state of Liangxiaoyu is NaHSO4=NA+ +HSO4-. An ionic bond is formed between sodium ion and bisulfate ion in sodium bisulfate, and hydrogen forms a covalent bond with sulfate in bisulfate ion.

In water, both ionic and covalent bonds can be broken, so hydrogen ions and sulfate ions can be formed. However, when melting, only ionic bonds can be broken under heating, so only sodium ions and sulfuric acid can be formed.

Ionization equation.

The formula that represents the ionization process with chemical formula and ion symbol is called the ionization equation, which indicates the chemical equation in which a substance is ionized into ions when it is dissolved in water or in a molten state.

The number of charges carried by ions can generally be based on their valency in the compound.

to judge. The total number of positive charges in all cation bands is the same as all anions.

The total number of negative charges carried is equal.

There is no OH-. in Na2CO3So oh- water is ionized out of this bridge.

Answer: 10 -5mol L,2,pH=9,POH=14-pH=5 Ionized by water OH-matter concentration=10-5mol L,2,

The ionization equation for NaHSO4 in water is NaHSO4=NA+HSO4 Writing error because hydrogen sulfur aquanet can also be ionized in water: HSO4 - H + SO4 2-

Therefore, the auspicious ionization equation of Zhengjin's fission is NahSO4 = (Na + H + So4 2- ).

NaHSO4 is a strong electrolyte in the preparation solution.

100% ionized in water.

The ionization equation is.

NaHSO4 = NA+ +H+ +SO42 - satisfactory rolling. Thank you for selling things.

The ionization equation for NaHSO4 in water is NaHSO4 NA++H++SO。The ionization equation should be written according to the law of conservation of mass, that is, the number of atoms of the same element on the left and right sides is equal; At the same time, the reason why the solution is not electroelectric is that the total amount of positive charge carried by the cation and the total amount of negative charge carried by the anion are equal, and the charged number of ions is equal to the valence value of the element or atomic cluster.

Principles of ionization equationsMost of the solvents we come into contact with are water, so substances that can produce cations in water during the ionization process are all hydrogen ions are called acids, and substances that are anions of hydroxide ions produced in the ionization process are called alkalis. If our thinking breaks through the transfer of water as a medium, the problem is similar, for example, in the case of liquid ammonia as a solvent, if the solute ionization only produces cations as hydrogen ions is acid, and ionization only produces anions as hydroxide ions of substances is alkalis, the following is a summary of the anions and cations produced by the self-ionization of some solvents themselves.