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An example of back titration, the Volhard method, named after Jacob Volhard, involves the addition of excess silver nitrate to the analyte; the silver chloride is filtered, and the remaining silver nitrate is titrated against ammonium thiocyanate, [1] with ferric ammonium sulfate as an indicator which forms blood-red [Fe(OH 2) 5 (SCN)] 2+ at the end point:
A chloridometer is a measuring instrument used to determine the concentration of chloride ions (Cl –) in a solution.It uses a process known as coulometric titration or amperostatic coulometry, the accepted electrochemistry reference method to determine the concentration of chloride in biological fluids, including blood serum, blood plasma, urine, sweat, and cerebrospinal fluid.
Dichlorofluorescein (DCF) is an organic dye of the fluorescein family, being substituted at the 2 and 7 positions by chloride. It is used as an indicator for argentometry by Fajans method. [1] [2] When used as an indicator, upon reaching the equivalence point of a titration reaction the color shifts from colorless towards a faint pink.
Example of Mohr argentometric titration near the endpoint: note the characteristic brick-red colour appearing due to silver chromate formation. The reactivity of the chromate anion with silver is lower than with halides (e.g. chlorides) so that in a mixture of both ions, only silver chloride precipitate will form: [9] AgNO 3(aq) + Cl − (aq ...
After the 2024 election, women’s reproductive rights are front and center of the news cycle, once again.. According to reports, there has already been a surge in demand for mifepristone, a.k.a ...
Sometimes the pain itself becomes a barrier to entry for someone seeking long-term birth control, with women opting for other methods simply because they don’t want to endure the painful procedure.
The Associated Press said Monday that it would begin offering buyouts and lay off selected employees, part of a plan to reduce the news outlet's staff by about 8% and accelerate a transition to a ...
Fluorescent chloride sensors are used for chemical analysis. The discoveries of chloride (Cl − ) participations in physiological processes stimulates the measurements of intracellular Cl − in live cells and the development of fluorescent tools referred below.