The acid is added to the iron II ammonium solution to prevent oxidation of iron II ions to iron III ions, which could lead to an inaccurate titration result. The acid helps maintain the iron II ions in their reduced state for the titration with the permanganate solution.
When Dilute HCL is added to water a more diluted solution of HCl is made.
When salt is added to water, the equilibrium of the system is disturbed due to the dissolution of the salt. This disruption leads to an increase in the concentration of ions in the solution, which can affect properties such as boiling point, freezing point, and osmotic pressure. Eventually, a new equilibrium is established between the dissolved salt and the water molecules.
In a saturated solution, the rate of dissolution and precipitation are in equilibrium. Therefore, when solute is added, the solution is already at the maximum capacity to hold the solute. This causes the additional solute to remain as solid, as it cannot dissolve further without increasing the temperature or changing the conditions.
The point at which no more solute will dissolve in a solution is known as saturation. At saturation, the solution is considered to be in equilibrium, with the rate of dissolution equal to the rate of precipitation of the solute. Additional solute added beyond this point will not dissolve and will instead precipitate out of the solution.
The addition of ammonium to a copper solution can shift the equilibrium towards formation of a copper-ammonia complex, resulting in a decrease in free copper ions in solution. This shift can be indicated by changes in color, pH, or concentration of reactants or products in the solution.
What is the evidence for a shift in equilibrium's when ammonium chloride was added to the stock solution in hydroxide phenolphthalein? In: http://wiki.answers.com/Q/FAQ/2455 [Edit categories]
When aqueous ammonia is added to polyacrylic acid, the products are the ammonium salt of polyacrylic acid and water. To calculate the pH of the solution, you would need to consider the equilibrium between the acid (polyacrylic acid) and its conjugate base (ammonium polyacrylate). You can determine the pH based on the concentration of the acid, the equilibrium constant, and the dissociation of the acid.
When ammonium chloride is added to water, it dissolves, creating ammonium ions (NH4+) and chloride ions (Cl-) in the solution. This dissociation process is endothermic, so it cools the solution. The resulting solution will be slightly acidic due to the presence of ammonium ions.
When a solution of sulfuric acid is added to a solution of ammonium hydroxide, a neutralization reaction occurs. The sulfuric acid will donate protons to the ammonium hydroxide, forming water and ammonium sulfate salt. Heat may also be produced in the process.
Ammonium chloride (NH4Cl) could be added to an ammonia solution to form a buffer solution. As ammonia accepts a proton (H+) to form ammonium ion (NH4+), the ammonia-ammonium ion pair acts as a buffer system, maintaining a stable pH.
When ammonium sulfate is added to a protein solution, it disrupts the protein's structure by reducing the solubility of the protein. This causes the proteins to aggregate and precipitate out of the solution.
Ti identify ammonium ion, NaOH is added to the original solution of the ammonium salt and a paper dipped in HCl is brought to mouth of test tube. If white vapours are observed, then ammonium is present. Or Neissler's reagent(K2HgI4) can be added to the original solution of the ammonium salt. A reddish brown ppt. is observed in case of ammonium ion.
Calcium carbonate is rather INsoluble, so there is no solution of it. I do not know why ammonium oxalate is added to a calcium carbonate solution. Calcium oxalate will then precipitate out of the solution. The ammonium and carbonate will create a weakly bond compound. Actually, more of the ammonium ion will be in solution as free ammonia and more of the carbonate ions will be in solution as free carbon dioxide. That is the nature of those two substances. So, you will have a solution that has a calcium oxalate precipitant on the bottom and is slowly giving off ammonia and carbon dioxide.
Nothing, strong (H2SO4) and weak acid (NH4+) do not react with each other.However the weak base ammoniA (NH3) will react to form ammoniUM (NH4+) ions by gaining protons from strong acid (H+)
When sodium hydroxide solution is added to ammonium hydroxide, a double displacement reaction occurs. Ammonium hydroxide is a weak base and sodium hydroxide is a strong base. The reaction produces water, sodium hydroxide, and ammonia gas.
When ammonium sulfate is added to a potassium hydroxide solution, a double displacement reaction occurs. Ammonium hydroxide and potassium sulfate are formed as products. Ammonium hydroxide is a weak base while potassium hydroxide is a strong base.