ELI5: What are Halide Ions? : r/explainlikeimfive - Reddit
2019年1月15日 · Halide ions are the negative-one ion (-1) of the elements in the "Halogen" group of the table. Group 17 (or 7A). This group is the second-to-last column in the table. The atoms are Fluorine (F), Chlorine (Cl), Bromine (Br) and Iodine (I). (Astatine and Tennessine are also in this row, but they are unstable and radioactive).
Mobility of halide ions : r/chemhelp - Reddit
2021年8月6日 · The mobility of halide ions generally increases down the group with iodide ion showing an exception. My reasoning: Going down the group, the ionic radius increases, meaning that the surface charge density decreases. As a consequence, the hydrodynamic radii of halide ions decrease down a group. Mobility is inversely proportional to radius.
ELI5: Could the halide ions (fluoride, chloride, bromide and
2022年8月11日 · A halide ion has a negative charge as it has one less proton in the nucleus. Even though the electron configuration is the same as the adjacent noble gas. So its going to react differently.
Why does stability of halide ions in aqueous solution increase
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ELI5: Why are halide ions colourless in (organic) solvents, but ...
2019年6月1日 · So in a halide-halogen reaction, Cl 2 will displace I- ions into the solution as I2, forming a vivid purple. But the I- was in solution the whole time, being completely transparent. How does one covalent bond cause such a drastic, deep ( handsome) single colour?
Help with Gravimetric analysis halide ions using silver nitrate
2017年10月4日 · It is asking me to find the mass of halide in precipitate of Cl-, Br-, and I-, given the average mass of AgX and stoichiometry of AgNO3 + K(Cl, Br, KI) -> AgX + KNO3. So I have an average mass of 0.38g for AgX. The silver nitrate was just added generally until the 25mL of the halide solution stopped precipitating.
Why would you use nitric acid instead of hydrochloric acid to
2020年6月22日 · Dilute nitric acid is first added to the solution you want to test. By adding nitric acid, other anions present in your solution (such as carbonate ions) will react. This step is just to remove anions that could give a false-positive observation. After this, add silver nitrate solution (this is the main step).
[Analytical Chemistry] Gravimetric Analysis : r/HomeworkHelp
2013年8月27日 · A 0.6407g sample containing chloride and iodide ions gave a silver halide percipitate weighing 0.4430g. This percipitate was then strongly heated in a strean of cl2 gas to convert the AgI to AgCl; upon compleation of this treatment, the percipitate weighed 0.3181g. Calculate the percentage of chloride and iodide in the sample
What’s the point of AgNO3? : r/OrganicChemistry - Reddit
2019年2月1日 · AgCl is very poorly soluble. As chloride ions form, they precipitate out as the silver salt, driving the reaction forward via LeChatlier's principle. Ethanol is a pretty crummy nucleophile, without silver this reaction probably will reach an equilibrium at just a few percent of the new alkyl alcohol created.
Nucleophile questions : r/chemhelp - Reddit
2017年11月12日 · The reaction you might be alluding to regarding the alkyl halide and iodide in acetone is a famous transformation called the Finkelstein reaction which takes advantage of the unusually high solubility of NaI in acetone compared to the resulting NaX biproduct of a S*N*2 to drive the equilibrium in favor of the products.
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