Complexometric titration is a volumetric analytical method with the formation of a colored complex. The formation of a colored complex serves as an indicator of the endpoint of the titration. It can be used in determining the hardness of water using eriochrome black T as an indicator. Eriochro...
Why is carbon called the backbone of organic chemistry? Why do most fatty acids have an even number of carbons? Why are heavy metals toxic? What is the reason why hydrocarbons are not soluble in water? Why must deuterated solvents (such as D2O and CDCl3) be used to prepare NMR samples?
aAll reactions were carried out under argon. Chemicals were purchased from Aldrich, Acros, or AlfaAsar, and, unless otherwise noted, were used without further purification. Flash chromatography was performed on silca gel (silca gel, 200-300 mesh). 1H NMR and13C NMR spectra were recorded on ...
Why is water polar? Why is glycine nonpolar? Why is NH3 soluble in water? How can the speed of solvent molecules be slowed down? Why are endospores so difficult to stain? Why must deuterated solvents (such as D2O and CDCl3) be used to prepare NMR samples? Why does methanol affect the...
Why must deuterated solvents (such as D2O and CDCl3) be used to prepare NMR samples? Why do solutes dissolve in solvents? Why must standardized cuvettes be used with a spectrophotometer? Why are some samples stained before viewing them? Why is water used as a blank in...
Why is glycine nonpolar? Why is water called the universal solvent? Why is nickel not soluble in water? Why must deuterated solvents (such as D2O and CDCl3) be used to prepare NMR samples? Why is water polar? Why is naphthalene insoluble in water? Why does NaBr dissolve in water? Why ...