Remember that both these metals are amphoteric, they can react both with bases as well as with acids. Therefore, under baisc (NH4OH = NH3 + H2O) conditions you initially would pptate the hydroxides (Al(OH)3 or Zn(OH)2) but if the medium is very basic these hydroxides will dissolve and form anions containing the metal, aluminate [ (Al(OH)4 ]- and / or zincate [ Zn(OH)4 ]=. If you add H2S your Zn2+ ions end up pptating as ZnS, quite insoluble salt.
NH4Cl + NaOH ---> NaCl + NH4OH
HCl + NH4OH -> H2O + NH4Cl
NH4Cl + KOH becomes KCl + NH4OH which latter in essence is ammonia and water. The ammonia escapes from the mixture as a gas.
this is buffer system consisted of a weak base and its conjugated base. NH4OH is the weak acid and the NH4Cl is the conjugated base. when an acid or a base is added in small amount the change of the pH of this solution is neglegible hence we tells that this shows a resistivity when adding an acid or a base .when an acid is added OH ions reacts and form H2O and NH4OH dissociates and give the OH ions to the solution .When an base is added NH+ ions react with OH ions added and form NH4OH which dissociates weakly to NH+ ions and OH- ions .
There are two possible representations of this. NH3(aq) + HCl(aq) --> NH4Cl(aq) or NH4OH + HCl --> NH4Cl + H2O However, this second equations is not entirely accurate as only small amounts of NH4OH will form in an ammonia solution.
NH4Cl + NaOH ---> NaCl + NH4OH
2 NH4Cl +Mg(OH)2 -> 2 NH4OH + MgCl2
NH4 with a charge of +1.
HCl + NH4OH -> H2O + NH4Cl
NH4Cl + KOH becomes KCl + NH4OH which latter in essence is ammonia and water. The ammonia escapes from the mixture as a gas.
this is buffer system consisted of a weak base and its conjugated base. NH4OH is the weak acid and the NH4Cl is the conjugated base. when an acid or a base is added in small amount the change of the pH of this solution is neglegible hence we tells that this shows a resistivity when adding an acid or a base .when an acid is added OH ions reacts and form H2O and NH4OH dissociates and give the OH ions to the solution .When an base is added NH+ ions react with OH ions added and form NH4OH which dissociates weakly to NH+ ions and OH- ions .
a balanced equation for the reaction of hydrochloric acid and ammonia solution is given below.HCL(aq) + NH3(l) ---> NH4+(aq) + Cl-(aq) complete .This is the balanced chemical equation .
The chemical name for the salt which comes from a mixture of hydrochloride and ammonia water is ammonium chloride.Ammonia (NH3) reacts with water to form ammonium hydroxide (NH4OH), and when reacted with hydrochloric acid, the Cl- anion dispaces the OH- to give us the ammonium chloride (NH4Cl), while the displaced hydroxide and the H+ of the HCl get together to form a water molecule.NH3 + H2O ---> NH4OH, and NH4OH + HCl ---> NH4Cl + H2OSince a water molecule is a reactant and a product, we can ignore it and the reaction becomes:NH3 + HCl ---> NH4Cl
There are two possible representations of this. NH3(aq) + HCl(aq) --> NH4Cl(aq) or NH4OH + HCl --> NH4Cl + H2O However, this second equations is not entirely accurate as only small amounts of NH4OH will form in an ammonia solution.
NH4Cl - Ammonium Chloride
The chemical reaction is:2 NH4Cl + Ca(OH)2 = 2 NH4OH + CaCl2
An example:HCl + NH4OH----------------NH4Cl + H2O