For the equilibrium system: CD(s)⇔ C+(aq) + D- (aq) ; CD in solid state is pink. D- in aqueous solution is yellow. The saturated aqueous solution of this system is yellow.
XD is a liquid that dissolves in water to form:
XD(l) → X+(aq) + D- (aq) ; if XD is added to the this system what would you expect to see?
| A. | solution will turn more yellow | |
| B. | pink solid will form | |
| C. | solution will turn clear | |
| D. | none of these |
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For the equilibrium system: CD(s)⇔ C+(aq) + D- (aq) ; CD in solid state is pink....
For the equilibrium system: CD(s)⇔ C+(aq) + D- (aq) ; CD in solid state is pink. D- in aqueous solution is yellow. The saturated aqueous solution of this system is yellow. XD is a liquid that dissolves in water to form: XD(l) → X+(aq) + D- (aq) ; if XD is added to the this system which way does the equilibrium shift? A. right ; toward products B. no shift C. left ; toward reactants D. none of these
CaF2(s)⇄Ca2+(aq)+2F−(aq) Ksp=3.9×10−11 HF(aq)⇄H+(aq)+F−(aq) Kc=6.8×10−4 The dissolution of calcium fluoride is represented by the equilibrium system above at 25°C. The F− ion is produced when the weak acid HF dissociates. If solid calcium fluoride is added to equal volumes of the following solutions at 25°C, in which solution will the most calcium fluoride dissolve. a.Pure distilled water b. 1MHNO3(aq) c. 1 M NaOH(aq) d. A saturated aqueous CaF2 solution
#3 cannot use Cd(NH3)42+ or any
cadmium salt
CdC2O4(s) + 4 NH3 (aq) ←→ Cd(NH3)4+2 (aq)-C204-2(aq) Note: C2o2(aq) is the oxalate ion 1. If solid CdC204(s) is added, the equilibrium will a. shift toward the reactants b. shift toward the products c. not shift at all d. produce some of the solid. 2. If NH3(aq) is added the equilibrium will a. shift toward the reactants b. shift toward the products c. not shift at all d. cause some solid to...
HC2H3O2(aq) +
H2O()
C2H3O2-(aq) +
H3O+(aq)
In the example equilibrium system, a drop of methyl orange indicator was added. For this indicator, the solution will be red in high concentrations of HO+, and the solution will turn yellow in low concentrations of H,O+ Initially the equilibrium solution was orange. What color is expected after the addition of the NaC,H,O2? Explain your reasoning. a. b. Initially, the equilibrium solution was orange. What color is expected after the addition of a strong...
CdF2(s)⇄Cd2+(aq)+2F−(aq) A saturated aqueous solution of CdF2 is prepared. The equilibrium in the solution is represented above. In the solution, [Cd2+]eq=0.0585M and [F−]eq=0.117M. Some 0.90MNaF is added to the saturated solution. Which of the following identifies the molar solubility of CdF2 in pure water and explains the effect that the addition of NaF has on this solubility? a. The molar solubility of CdF2 in pure water is 0.0585M, and adding NaF decreases this solubility because the equilibrium shifts to favor...
MgF2(s) <--> Mg2+(aq) + 2 F–(aq) In a saturated solution of MgF2 at 18 0C, the concentration of Mg2+ is 1.21 x 10–3 molar. The equilibrium is represented by the equation above. (a) Write the expression for the solubility-product constant, Ksp, and calculate its value at 18 0C. (b) Calculate the equilibrium concentration of Mg2+ in 1.000 liter of saturated MgF2 solution at 18 0C to which 0.100 mole of solid KF has been added. The KF dissolves completely. Assume...
Consider a saturated aqueous solution of chromium (III)
hydroxide, Cr(OH)3(s)?Cr3+(aq)+3OH?(aq) How will each of the
following changes affect an equilibrium mixture?
Part C Additional solid chromium (II) hydroxide is added to the saturated solution of chromium (Il) hydroxide. shift equilibrium toward the reactants shift equilibrium toward the products O no affect Submit My Answers Give Up Part D 5 mL of 12 M HCI (aq) is added to the saturated solution of chromium (Il) hydroxide. shift equilibrium toward the reactants...
all 5&6
5.) Solid silver bromide , AgBr, can be dissolved by adding concentrated aqueous ammonia to give the water- soluble silver-ammonia complex ion. AgBr(s) + 2NH,(aq) U Ag(NH), (aq) + Br(aq) (a) Show that this equation is the sum of two other equations, one representing the dissolution of AgBr into its component ions and the other representing the formation of the silver-ammonium complex from silver ion and ammonia (b) Calculate the equilibrium constant for the above reaction K,(AgBr) =...
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...
2. (9 pts) The three reactions below are all at equilibrium simultaneously in solution. Ca²+ (aq)+C,0% (aq) +CaC,0,(s) H,C,D,(aq)+H'(aq) + HC,D,(aq) HC,07(aq) + H+ (aq)+C,0; (aq) a. If HNO3 is added to this solution, would you expect to see more or less of the precipitate (CaC204) formed in the solution? Explain your reasoning by showing the effect of the addition of HNO3 on the equilibrium for the reaction. b. If Ba(OH)2 is added to this solution, would you expect to...