Образуется растворимое комплексное соединение:
AgBr + 2 NH4OH -----> [Ag(NH3)2]+ + Cl- + 2 H2O.
2 AgBr (s) + 2 NH4OH (aq) --> Ag2O (s) + H2O (l) +2 NH4Br (aq) The reaction does not proceed rapidly as in the case of AgCl as AgBr is only slightly soluble in ammonium hydroxide. With more NH4OH, the brown/black Ag2O dissolves forming the soluble salt Silver Di-amine hydroxide: Ag2O (s) + 4 NH4OH --> 2 [Ag(NH3)2]OH + 3 H2O I suspect that this reaction is reversible and the loss of NH3 would push the reaction to the left, which may occur naturally with time. This is a major problem as the precipitated Ag2O can further react with NH4OH to form Silver nitride, Ag3N: 2 NH4OH (aq) + 3 Ag2O (s) --> 2 Ag3N (s) + 5 H2O Silver nitride can be a highly sensitive and powerful contact explosive, even when in solution. This has been ascribed to be the cause of many injuries, and as such, solutions of [Ag(NH3)2]OH should not be stored for safety concerns.
When ethyl bromide, an alkyl halide, reacts with alcoholic silver nitrate (AgNO3), silver bromide (AgBr) and ethanol are produced. This reaction is a substitution reaction where the bromine in ethyl bromide is replaced by the nitrate ion from silver nitrate.
AgBr is a compound composed of silver (Ag) and bromine (Br) elements.
The equation for the reaction between phosphoric acid (H3PO4) and ammonium hydroxide (NH4OH) is: H3PO4 + NH4OH -> (NH4)3PO4 + H2O This balanced equation shows the chemical reaction where phosphoric acid reacts with ammonium hydroxide to form ammonium phosphate and water.
Yes, AgBr is a solid. It is a white crystalline solid that is insoluble in water.
AgBr is the chemical formula of silver bromide.
NH4OH NH4OH
The chemical formula for silver bromide is AgBr.
AgBr is the chemical formula (not symbol) of silver bromide.
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
2 AgBr (s) + 2 NH4OH (aq) --> Ag2O (s) + H2O (l) +2 NH4Br (aq) The reaction does not proceed rapidly as in the case of AgCl as AgBr is only slightly soluble in ammonium hydroxide. With more NH4OH, the brown/black Ag2O dissolves forming the soluble salt Silver Di-amine hydroxide: Ag2O (s) + 4 NH4OH --> 2 [Ag(NH3)2]OH + 3 H2O I suspect that this reaction is reversible and the loss of NH3 would push the reaction to the left, which may occur naturally with time. This is a major problem as the precipitated Ag2O can further react with NH4OH to form Silver nitride, Ag3N: 2 NH4OH (aq) + 3 Ag2O (s) --> 2 Ag3N (s) + 5 H2O Silver nitride can be a highly sensitive and powerful contact explosive, even when in solution. This has been ascribed to be the cause of many injuries, and as such, solutions of [Ag(NH3)2]OH should not be stored for safety concerns.
Silver bromide (AgBr) is a light yellowish precipitate.
PbCl2 is insoluble in NH4OH. When PbCl2 is mixed with NH4OH, it forms a precipitate of lead chloride due to the low solubility of PbCl2 in NH4OH solution.
Na2S2O3 + AgBr → NaBr + Na3[Ag(S2O3)2] First check that the given equation is balanced ... it isn't ... so the first thing to do is balance the equation: balancing Na: 2Na2S2O3 + AgBr → NaBr + Na3[Ag(S2O3)2] and everything is now balanced so we've got the balanced equation molar mass AgBr = 107.87 + 79.90 = 187.77 g/mol mol AgBr available = 42.7 g AgBr x [1 mol / 187.77 g] = 0.2274 mol AgBr from the balanced equation the mole ratio AgBr : Na2S2O3 = 1 : 2 so mol Na2S2O3 required = 0.2274 mol AgBr x [ 2 mol Na2S2O3 / mol AgBr] = 0.455 mol Na2S2O3 (to 3 sig figs)
When ethyl bromide, an alkyl halide, reacts with alcoholic silver nitrate (AgNO3), silver bromide (AgBr) and ethanol are produced. This reaction is a substitution reaction where the bromine in ethyl bromide is replaced by the nitrate ion from silver nitrate.
Silver bromide.
AgBr is a compound composed of silver (Ag) and bromine (Br) elements.