Neutralisation

Neutralization and neutralization are the processes by which acids and bases react with one another and weaken each other to neutral pH 7. When the substance is neutral, it means that it contains the same amount of hydrogen ion (H +) as hydroxide ion (OH -). When an acid and a base react to form a salt, the resulting salt depends on the acid and base used, for example, hydrochloric acid and sodium hydroxide produce sodium chloride and water. In this case, sodium causes chlorine to leave hydrogen, hydrogen and hydroxide remain, then hydrogen and hydroxide combine to form water, in which case sodium chloride is formed.

Since sulfuric acid is an acid, it needs to be neutralized with a base. Commonly used neutralizing bases include sodium hydroxide, sodium carbonate, calcium hydroxide and the like. Sodium hydroxide, also known as caustic, is the most widely used alkaline neutralizing agent in the industry. Because of its high solubility, it is effective, inexpensive and easy to handle. In order to neutralize sulfuric acid, NaOH was slowly and cautiously added to the acid until the end point was reached. A relatively safe sodium sulfate aqueous solution will be formed as product. The neutralized acid is then collected in plastic containers and disposed of in accordance with local regulations.

Objective My goal is to find the amount of hydrochloric acid required to neutralize sodium hydroxide. Theoretical titration is a laboratory method for analyzing chemical concentration. In this experiment, it is necessary to neutralize 10 cm 3 of sodium hydroxide with 10 cm 3 of hydrochloric acid. In this experiment, phenolphthalein was used as an indicator. In this case, the base was pink and the acid was white turbid. When they are used to neutralize each other, the mixture becomes transparent at the end point. The end point is the same number of moles in the two solutions.

Various neutralizing agents are available for bleaching. Bleaching agents are known to be general false positives detected by putative tests. Since the active ingredient of bleach is sodium hypochlorite, neutralization effect is studied. The most commonly used is sodium thiosulfate and the other is ascorbic acid, which is more commonly used in water storage tanks for all the bleach remaining in the climate. Because of neutralization of peroxides, these neutralizing agents are used to check if they neutralize all false positives.