Answer:-
Mg(OH)2 (s) <====> Mg2+(aq) + OH-(aq)
a. On adding HCl the equilibrium will shift in the forward direction i.e. right shift because it will remove the OH- from the reaction.
b. On adding NaOH , the equilibrium will move backward i.e. left shift.
c. On diluting the equilibrium will shift in the forward direction because it will increase the volume .
2. Consider the following equilibrium: Mg(OH)2(8) 5 Mg?'(aq) + 2OH(aq) redict the shift in system at equilibrium if...
1. Consider the following equilibrium: Cr OP(aq)+H20(1) 5 2Cro2 (aq) + 2H'(aq) a. Predict the shift in system at equilibrium if a solution of AgNO; is added dropwise to the system at equilibrium. Briefly explain. b. Predict the change in equilibrium if a solution of NaOH is added dropwise to the system at equilibrium. Briefly explain. c. Predict the change in equilibrium if the system at equilibrium is diluted by distilled water. Briefly explain.
A flask contains the following system at equilibrium: Mg(OH)2(s) + Mg2+(aq) + 2 OH"(aq) Which of the following reagents could be added to increase the solubility of Mg(OH)2? HCI O H20 O NH3 MgCl₂ NaOH
Taking into account the dissolution-precipitation equilibrium of Fe(OH)2: Fe(OH)2 (s) ---> Fe2+ (aq) + 2OH- (aq) (a) How much Fe2+ (expressed in mg/dm3) may be present in a water containing 0.001 M of NaOH without occurring precipitation of Fe(OH)2 ? (b) Determine the maximum amount of Fe2+ in solution (expressed in mg/dm3) by lowering the pH value of water by two units (possible by the addition of a strong acid). Kps (Fe(OH)2)= 2.0 x 10^-15 M^3
2. Consider the following equilibrium represent by the reversible equation below: Cu?"(aq) + 4 NH OH(aq) = [Cu(NH3)4]?" (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.
(aq) (1) Mg(OH)2 is partially dissolved in water: Mg(OH), (s) = Mg2+ (aq) + 2OH Write the Kop expression for Mg(OH)2 : Kp = (2) Solid AgCl is partially dissolved in water: AgCl 2 Ag+ + CI''. If the molar solubility is known as [Ag +) = [CI''] = 1.3x 10 M, AgCl Kip =- (a) 1.3 x 10 (b) 1.69 x 10-10 (c) 2.6 x 10 (d) none of these (3) At 25 °C, the solubility of solid AgCl...
Consider the following equilibrium, where Mg(OH), is the only species in liquid water: Mg(OH),(s) – Mg? + (aq) + 2OH(aq) Given that Kp = 1.8 x 10-11will a precipitate form when Mg(OH), is 1.8 x 10-M? Select the correct answer below: Yes, because Q > K, Yes, because Q <K No, because Q <K O No, because Q > K.
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.
Section Name Experiment 2 Advance Study Assignment: Properties of Systems in Chemical Equilibrium 1. Methyl orange, HMO, is a common acid-base indicator. In solution it ionizes according to the equation: HMO(aq) H(aq) + MO (aq) red yellow If methyl orange is added to distilled water, the solution turns yellow. If a drop or two of 6 M HCl is added to the yellow solution, it turns red. If to that solution one adds a few drops of 6 M NaOH...
G. C. 2-7 Studying the Effect of Changes in Conditions on an Equilibrium System 57 System No. 4: [Co(H0).J? + 4C 5 [CoCLIC + 6H,0 Solutions Observations Dissolved CoCl-6H,0 - Pink solution Solution plus HCI Blue Solution Heated solution Blue Solution Cooled solution Pink Solutam 9. According to the equilibrium equation, which ion(s) do you have after the solid was diluted? Explain how you know the identity of the ion(s) present. 10. Explain what happened when HCl was added to...
Milk of magnesia is a brand name for a commercial antacid. The active ingredient is Mg(OH)2. In water, a small amount of Mg(OH)2 dissolves producing a cloudy solution. The equilibrium reaction is Mg(OH)2(S, white) = Mg²+ (aq) + 2OH(aq) A. What observations would you see, if a small amount of concentrated HCl was added to an equilibrium mixture of Mg(OH)2 in water? B. Write the net ionic equation for the reaction that occurs in part A. C. Explain your observations...