The indicator phenolphthalein is used in the titration of NaOH and H2SO4. Phenolphthalein turns bright pink when the titration is complete and the sulfuric acid is neutralized.
Acid-base titration is a process that scientists utilize to neutralize an acid in order to determine the acid's concentration. In the titration of NaOH and H2SO4, an unknown concentration of H2SO4 is added to a flask. Next, NaOH is added to the H2SO4 by drops. NaOH dissociates into Na+ and OH-, while H2SO4 dissociates into H+ and HSO4-. Once the number of OH- ions equals the number of H+ ions, the acid is neutralized and the indicator, phenolphthalein, turns bright pink.Learn More
NaOH is the chemical formula for sodium hydroxide. It is also called caustic soda or lye. At room temperature, pure sodium hydroxide is a white, odorless solid. It is an extremely caustic metallic base and an alkaline corrosive.Full Answer >
The reaction between NaOH and AgNO3 produces NaNO3, Ag2O and H2O. The common names of the chemicals in the reaction are sodium hydroxide, silver nitrate, sodium nitrate, silver oxide and water. The silver oxide precipitates out of solution as a brown solid, while the sodium nitrate remains in aqueous solution.Full Answer >
The pH of NaOH is 14. NaOH, or sodium hydroxide, is a highly caustic substance and is an alkali, or base. Sodium hydroxide is a white solid at room temperature.Full Answer >
According to Reference.com, the purpose of an acid-base titration is to find the concentration of an unknown acid or base in a solution. It works by gradually adding a base of known concentration into an unknown acid solution, or vice versa, until the solution is neutralized.Full Answer >