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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:
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.
The precipitation of the strongly coloured silver chromate is used to indicate the endpoint in the titration of chloride with silver nitrate in the Mohr method of argentometry. Example of Mohr argentometric titration near the endpoint: note the characteristic brick-red colour appearing due to silver chromate formation.
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.
For some groups, like those who require nonverbal communication methods, the likelihood of displacement can be even higher. The data also shows that once displaced, 21% of people with disabilities ...
If potassium chloride is added to mercurous nitrate on one side, mercury (I) chloride is precipitated. This decreased the osmotic pressure of mercury (I) ions on the side and creates a potential difference. This potential difference increases slowly as additional potassium chloride is added, but then increases more rapidly.
2 Executive Summary A crucial component of Mitt Romney’s Plan for a Stronger Middle Class is to dramatically increase domestic energy production and partner closely with Canada and Mexico
President Donald Trump made quick work of his first week-plus back in office — ticking off a number of campaign-trail promises, issuing a boatload of pardons (some controversial) and enacting ...