The end point of titration is the point where the acid-base just neutralizes, right?

The end point of titration is the point where the acid-base just neutralizes.

The end point of titration is not necessarily the point where acid and alkali just neutralize. It depends on the purpose of the experiment and the characteristics of the index. For example, if it is a titration experiment of strong acid and alkali, the indicator has a color mutation when it is close to neutrality, then when the indicator has a color mutation, it can be understood that the acid and alkali are just neutralized within the allowable error range.

However, the end point indicated by the acid-base indicator will not completely coincide with the point where the acid-base has just reacted, and there will be some errors. Acid-base is a name that describes the properties of chemical substances.

The traditional definition of acid (sometimes called "HA") is a compound. When it is dissolved in water, the concentration of hydrogen ions in the solution is greater than that in pure water. In other words, the pH value of acidic solution is lower than that of water (at 25℃, the pH value of water is 7).

Acids are generally sour, but it is very dangerous to taste acids (especially high concentration acids). Acid can react with alkali to form water and salt. Acids can be divided into inorganic acids and organic acids.

Characteristics of acids and bases

1, the acid is acidic.

2. Acid can turn purple litmus test solution red, and alkali can turn purple litmus test solution blue.

3. Acids can react with active metals to generate salts and hydrogen, and with metal oxides to generate salts and water, and can also generate new salts and new acids through some reactions.

4. Acids can be divided into inorganic acids and organic acids.