when NH3(aq) is added into Cu2+(aq), what is the chemical of the 1st precipitation?
2. Consider the following equilibrium: Cu2+(aq) pale blue + 4NH3(aq) +[Cu(NH3)4]2+ (aq) colorless deep purple Would you expect to see an increase, no change, or a decrease in the purple color when: (a) the temperature of the system is increased (the reaction is endothermic). (b) a catalyst is added. (c) more aqueous NH3 is added to the equilibrium. (d) the pressure is increased. NaOH(aq) is added to the system, resulting in the precipitation of Cu(OH)2(s). _(1) (f) the volume of...
When NH3 is added to a solution that contains Cu2+ ions at first the solution becomes cloudy and a white precipitate starts to fall to the bottom of the container. If NH3 continues to be added the solution changes from a light blue color to a dark blue color and the precipitate disappears. Describe what is happening is happening on the molecular level.
HIn(aq) + H2O(l)⇔In-(aq) + H3O+ (aq) WHEN added these following what are the chemical balance equation for the above equation? Write a chemical equation for each of the steps respectively. 2 mL of deionized water -> ? 1 drop of methyl orange-> ? 1 drop of 1M HCl -> ? 3 drops of 1M NaOH -> ?
When NH3 is added to water, the following process occurs: NH3 (aq) + H2O (1) + NH4+ (aq) + OH- (aq) In this process, what is the role of NH3? Both an Arrhenius Base and a Bronsed-Lowry Base A Bronsted-Lowry Acid An Arrehenius Acid An Arrhenius Base A Bronsted-Lowry Base Molecular level views of three aqueous solutions (A, B, and C) are shown below (H20 molecules have been omitted for clarity, and because I'm lazy...): (A) (B) (C) + Which...
2. Consider the following equilibrium represent by the reversible equation below: Cu2+(aq) + 4 NH4OH(aq) = [Cu(NH3)4]2+(aq) + 4 H20() Blue Colorless Navy blue Predict the shift (explain why) and indicate the color of the solution when a. Drops of strong acid is added
2. Consider the following equilibrium represent by the reversible equation below: Cu2+(aq) + 4 NH4OH(aq) = [Cu(NH3)4]2+(aq) + 4 H20() Blue Colorless Navy blue Predict the shift (explain why) and indicate the color of the solution when c. Water is added to the mixture at equilibrium.
2. Consider the following equilibrium represent by the reversible equation below: Cu2+(aq) + 4 NH4OH(aq) = [Cu(NH3)4]2+(aq) + 4 H2O(1) Blue Colorless Navy blue Predict the shift (explain why) and indicate the color of the solution when a. Drops of strong acid is added b. H2S gas is bubbled in the solution. Note: H2S reacts with transition metal cations. c. Water is added to the mixture at equilibrium.
2. Consider the following equilibrium represent by the reversible equation below: Cu2+(aq) + 4 NH4OH(aq) = [Cu(NH3)4]2+(aq) + 4 H2O(1) Blue Colorless Navy blue Predict the shift (explain why) and indicate the color of the solution when a. Drops of strong acid is added b. H2S gas is bubbled in the solution. Note: H2S reacts with transition metal cations. c. Water is added to the mixture at equilibrium.
Calculate [Cu2+] at equilibrium when 0.20 mol of CuSO4 is added to 1.000 L of 1.20 M NH3 solution. Kf for [Cu(NH3)4]2+ is 5.0 × 1013.
7) For the chemical reaction NH3(aq) + HCl(aq) → NH4*(aq) + CF (aq) the acid and conjugate base are a) NH3 (acid); NH4+ (conjugate base) b) NH3 (acid); CI (conjugate base) c) HCl (acid); NH3 (conjugate base) d) HCl(acid); NH4* (conjugate base) e) HCl (acid); CI (conjugate base)