Why do strong and weak acids have the same ability to neutralize bases with the same C acid , V?

First of all, it is necessary to distinguish the concepts of strong acid and weak acid: strong acid has strong ionization ability, weak acid power ability is weak, and some are not even ionized, that is to say, when strong acid and weak acid with the same molar concentration c produce a chemical reaction, the strong acid reacts quickly, while some weak acid almost does not react.

Then understand the essence of the acid-base neutralization reaction: the direct neutralization reaction of acid and base to generate salt, where the ability of acid to neutralize base is to say the amount of salt generated by the reaction of the same amount of acid and the same base, so the ability to neutralize the alkali of different acids is generally compared only to see the number of hydrogen ions that can be ionized out of the acid.

Then the number of hydrogen ions that can be ionized by a weak acid and a strong acid with the same concentration c and volume v is the same, so the ability to neutralize the base is also the same.

Because they are the same concentration, they contain the same amount of H (note, not H+).

For weak acids, there is an ionization reaction as follows (HAC is acetic acid, =

Indicates a reversible reaction): HAC

H+AC- This reaction stops at a certain point, and the state at which it stops is called the "ionization equilibrium state".

It starts out without complete ionization, and there are both HAC molecules and H+ ions in the solution. However, in the process of neutralization with the base, the H+ in the solution will continue to decrease, in order to maintain the balance of HAC and H+ in the solution, the above ionization reaction will continue to the right, that is, the HAC will continue to ionize and react with the base.

The second question: When the weak acid is ionized, when H+ is continuously removed, will the weak acid be completely ionized in the end?

Weak acids do not ionize completely.

Weak acid ionization: HAC

H+AC-, water ionization: H2O

H+OH- Because this is a reversible reaction, when the HAC in the solution is reduced, AC- will ionize with H2O H+ to form HAC in order to maintain the balance of HAC and H+ in the solution. No matter how much base you add, there will always be HAC molecules present in the solution.

Therefore, when the amount of the same substance reacts with a single weak acid and a strong base, the neutralized solution is not neutral, but weakly alkaline (because H+ after water ionization combines with AC- to form a molecule, leaving excess OH-).

The difference between strong acid and weak acid is that the ability of H+ to ionize is different, strong acid is completely ionized, and weak acid is partially ionized.

For example, the weak acid HCN, there is ionization equilibrium HCN = reversible = H++ in aqueous solution

After CN- is added to the alkali solution, the OH- in it will react with the ionized H+ mentioned above, so that its equilibrium will shift to the right, and the HCN will be ionized out of part of H+, and then react with OH-. Therefore, whether it is a strong acid or a weak acid, as long as the amount of the substance is the same, the final amount of neutralizing the base is the same. It's just that the neutralization rate of weak acids is slower than that of strong acids.

Same volume and same concentration in this question. And it's all monoacids.

Because n=c v. c is the same, v is the same. Therefore, the amount of substances of the two acids is the same. The ability to neutralize alkali is the same.

The ability to neutralize the base we are talking about here is the amount of base formed by the reaction of the same amount of acid with the same base, so the ability to neutralize the base of different acids is generally compared only by looking at the number of hydrogen ions that can be ionized out of the acid (note that the hydrogen atom directly connected to the carbon atom in organic acids is generally not considered to be hydrogen that can be ionized as an acid).

Hello landlord! Because the same concentration of monobasic strong acid and monobasic weak acid eventually ionize as many H ions! Because of the ionization equilibrium, the H ion and OH ion of the weak acid continue to react to form H20, so the H+ in the equilibrium also decreases, and the equilibrium shifts to the right until the end of the reaction!

(1) It can be said to be the concentration of hydrogen ions. It is generally the concentration of H+ that can be ionized by the solution.

2) The magnitude of the ability to neutralize the base is determined by the concentration of H+, in fact it is determined by the amount of matter, the amount of matter is the same, the number of hydrogen atoms is the same, and the number of hydrogen ions that can be ionized is the same. But their ionization capacity can be different. A neutralizing base is in fact the reaction of hydrogen ions with hydroxide ions.

3) The volume of H2 produced with active metals is determined by the concentration of the amount of the substance, as it is determined by the number of hydrogen ions.

4) The rate at which the reaction with the metal begins is determined by the pH value at the beginning of the solution, and the reaction rate is high at the beginning of the pH value.

5) Different, BH acid is stronger than AH acid.

Comparison of monobasic strong acid and monobasic weak acid: the volume is the same, the amount and concentration of the substance are the same, that is, under the same conditions, it is comparable.

Because the amount and concentration of the acid substance are the same, the volume is the same, indicating that the amount of the monobasic acid is the same, because the monobasic strong acid is complete electron, and the monobasic weak acid is partially ionized, so the concentration of hydrogen ions contained in the strong acid solution is large, and the concentration of hydrogen ions contained in the weak acid solution is small. When the pH is the same and the volume is the same, it means that the concentration of hydrogen ions in the solution is the same, the amount of hydrogen ions is the same, and the degree of inhibition to water is the same, so the concentration of hydrogen ions ionized by water is the same.

Hello, you have a lot of problems here. First of all, the essence of the neutralization reaction is the reaction of acid and base to produce salt and water.

Secondly, if you have a slight misunderstanding, a reversible reaction can be regarded as a complete reaction under certain conditions.

For example, NAOH+HAC=NAAC+H2O

HAC = H+ + AC- (reversible reaction).

First, the OH- in NAOH reacts with H+ ionized by HAC, and then the reaction continues to move in the direction of ionization due to the consumption of H+ in HAC, and continues to ionize to form H+, and then is reacted by OH-. Eventually, almost all of them are ionized, leaving only about 10 -9mol of H+ in the solution

Therefore, under the same conditions, the amount of NaOH consumed by HAC+NaOH and HCI+NaOH is the same, so the ability of both to neutralize alkali is the same.

Furthermore, H+ +OH-=H2O, H20=H+ +OH- (reversible reaction) Even if it is a strong acid and alkali reaction, isn't it a reversible reaction when it is reversed, and it does not make all the H+, OH- participate in the reaction, but we regard it as a thorough reaction between them, so you don't have to worry too much about the problem of equilibrium movement.

It should be noted that the amount of weak acid is weakly electrolyzed and not completely ionized.

The amount of concentration of the same volume and substance, the ability to neutralize alkalis, and the amount of hydrogen produced by reacting with active metals are the same, because the amount of substances in acids is the same. The pH after the reaction with the metal salt and the hydrogen ion concentration of water ionization, because the weak acid is not completely ionized, the pH after the weak acid reaction is high, and the hydrogen ion concentration of water ionization in the weak acid is also high.

At the same pH, because of the incomplete ionization of weak acids, if you want to produce the same pH value as strong acids, the concentration of weak acids should be greater than the concentration of strong acids, the ability of weak acids to neutralize alkalis and the amount of hydrogen produced by the reaction of active metals are more than that of strong acids, and the pH after the reaction with metal salts is less than that of strong acids, and the concentration of hydrogen ions ionized by water is also less than that of strong acids.

The same as v strong acid has a strong ability to neutralize the base, the same as the amount of hydrogen produced by the active metal reaction, the pH after the reaction of metal salts is small, and the concentration of hydrogen ions ionized by water is small.

The same pH strong acid has a weak ability to neutralize the base, the amount of hydrogen produced by the reaction with the active metal is small, the pH after the reaction of the metal salt, and the concentration of hydrogen ions ionized by water is the same.

Same as same concentration and same v.

Strong acids are completely ionized, while medium-strong acids are partially ionized.

The pH of both is equal, indicating that the concentration of H+ in the solution is equal. Medium-strong acids are partially ionized, so more medium-strong acids are needed to achieve the H+ concentration equal to the H+ concentration of strong acids, that is, the concentration of medium-strong acids in a single element is larger.

Because there is an ionization degree in the strong acid in the unitary medium, the concentration of the strong acid in the single element is larger than that of the strong acid in the single element with the same pH value compared with the strong acid in the unitary medium.

Obviously, medium and strong acids are still weak acids after all, and they are not completely ionized, and the same pH means that the concentration of ionized hydrogen ions is the same, so the concentration of medium and strong acids is larger.

Do you know the essential difference between strong acid and weak acid.

The hydrogen ions of strong acids can be completely ionized, while the hydrogen ions of weak acids can only be partially ionized, so the concentration of hydrogen ions in the former is greater than that of the latter. But if the amount of the two substances is equal, then the amount of hydrogen is also equal (both are monoacids).Note that it's hydrogen!

The hydrogen ions of the weak acid cannot be completely ionized because there is an equilibrium relationship, when the concentration of hydrogen ions in the solution decreases, then the acid will continue to release hydrogen ions to keep the amount of hydrogen ions in a suitable equilibrium relationship until all hydrogen ions are completely released. If a strong base is added, OH- reacts with H+, reducing the concentration of hydrogen ions in the solution, and the weak acid replenishes the hydrogen ions to maintain equilibrium until the hydrogen ions are completely consumed. So at this point, the ability to neutralize alkalis is actually the same as strong acids.

The same is true for hydrogen production, when hydrogen ions are consumed in the reaction with metals, weak acids will continue to release hydrogen ions. Therefore, in general, as long as the amount of hydrogen is equal, regardless of strong or weak acid, the ability to neutralize alkali and the ability to release hydrogen should be the same.