When looking at the equilibrium between calcium fluoride and its aqueous ions, what could be added...
When looking at the equilibrium between calcium fluoride and its aqueous ions, what could be added to solution to promote precipitation of calcium fluoride?
CaF2(s)↽−−⇀Ca2+(aq)+2F−(aq)
Select all that apply:
-
Extra calcium ions
-
Extra fluoride ions
-
Extra calcium fluoride
-
None of the above
Homework Answers
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When looking at the equilibrium between calcium fluoride and its
aqueous ions, what could be added...
1. Solid calcium fluoride (CaF2) establishes the following equilibrium in solution: CaF2(s) = Ca2+(aq) + 2F-(aq)...
1. Solid calcium fluoride (CaF2) establishes the following equilibrium in solution: CaF2(s) = Ca2+(aq) + 2F-(aq) Ke = 1.5 x 10-10 A solution initially contains 2.45 g of CaF2. a. In which direction will the reaction move to reach equilibrium? Explain your reasoning b. Calculate the equilibrium concentrations of Ca2+ and F. How much CaF2 (in mg) dissolves in solution? c. Another solution initially contains 2.45 g of CaF2 and 0.0025 M NaF. What are the equilibrium concentrations of Ca2+...
2. The equilibrium constant for the following reaction is called the "solubility product" of calcium fluoride:...
2. The equilibrium constant for the following reaction is called the "solubility product" of calcium fluoride: CaF2(s) - Cal(aq) + 2F-(ay) K = Kp = 3.2 x 10-11 (a) Write an expression for the equilibrium constant of this reaction in terms of concentrations. Why do you suppose we call this a solubility product instead of a solubility quotient or ratio? (b) Calculate the equilibrium concentrations of Ca2+ and F if excess solid CaF is placed in water. (c) in which...
What reagent could not be used to separate Br from C032 when added to an aqueous...
What reagent could not be used to separate Br from C032 when added to an aqueous solution containing both ions. Ca(NO3)2(a) None of these could be used to separate Brand CO 2 Cu(NO3)2(aq) Fe(NO3)2(aq) AgNO3(aq)
Help please! Show work xercise 14.16 thodynamic 2. The equilibrium constant for the following reaction is called the...
Help please! Show work
xercise 14.16 thodynamic 2. The equilibrium constant for the following reaction is called the fluoride: constant for the following reaction is called the "solubility product of calcium CaF2(s) - Ca2+(aq) + 2F (aq) K = K = 3.2 x 10-11 a write an expression for the equilibrium constant of this reaction in terms of concentrations. why do you suppose we call this a solubility product instead of a solubility quotient or ratio (b) Calculate the equilibrium...
Learning Goal: To learn how to calculate the solubility from Kspand vice versa. Consider the following equilibrium be...
Learning Goal: To learn how to calculate the solubility from Kspand vice versa. Consider the following equilibrium between a solid salt and its dissolved form (ions) in a saturated solution: CaF2(s)⇌Ca2+(aq)+2F−(aq) At equilibrium, the ion concentrations remain constant because the rate of dissolution of solid CaF2 equals the rate of the ion crystallization. The equilibrium constant for the dissolution reaction is Ksp=[Ca2+][F−]2 Ksp is called the solubility product and can be determined experimentally by measuring thesolubility, which is the amount...
When calcium nitrate, Ca(NO32, dissolves in water, it dissociates into its ions. We can represent that...
When calcium nitrate, Ca(NO32, dissolves in water, it dissociates into its ions. We can represent that process by the following equation Ca(NO3)h(s) Ca2(aq) 2NOs(aq) When 1.5 mol calcium nitrate dissolves in water, how many moles of ions should be present in solution? O 9.0 moles of ions O 1.5 moles of ions O 30 moles of ions O 13.5 moles of ions O 45 moles of ions
1. Write the equilibrium constant expression for the reaction N2 (g) + 3 H2 (g) D ...
1. Write the equilibrium constant expression for the reaction N2 (g) + 3 H2 (g) D 2 NH3 (g) 2. For the reaction in question 1, delta H = -92 kj*mol^-1 Predict the direction of shift of the equilibrium of the above reaction caused by adding N2 at constant volume and temperature removing H2 at constant volume and temperature adding N2 at constant volume and temperature raising the temperature at constant total pressure 3. Hydrogen fluoride (HF) is a weak...
04 (a) Calcium ions can be determined by precipitation of the oxalate according to the equation:...
04 (a) Calcium ions can be determined by precipitation of the oxalate according to the equation: Ca2+ (aq) + C2O42- (aq) = CaC204 (s) The solid may then be filtered off, washed and oxalic acid is regenerated by the addition of excess sulfuric acid. The amount of oxalic acid is then quantified by titration using potassium permanganate according to the equation: H2C204 + MnO4 + H+ = CO2 + Mn2+ + H20 (unbalanced) In an experiment to find the concentration...
I need all the help possible on this....thank you so much. I attached two pics...its the...
I need all the help possible on this....thank you so much. I
attached two pics...its the same question. The first picture gives
background on the actual questions
2. A geologist found a large deposit of the mineral Fluorite, CaF2, within a pond of stagnant water that is undisturbed by biological activities. This mineral had been leached into the water and had established equilibrium at 25°C for a considerable length of time. The equation for the solvation of Fluorite in water...
In step1, aqueous ammonia is added to a solution of the three ions. The equilibrium for...
In step1, aqueous ammonia is added to a solution of the three ions. The equilibrium for the ammonia is EQ1: NH3(aq + H2O(l) ßà NH4+(aq) Kb=1.8x10-5 The bismuth(III) ion is precipitated out of the solution as Bi(OH)3. The equilibrium involved is related to the one provided below: EQ2: Bi(OH)3(s) ßà Bi3+(aq) +3OH(aq)- Ksp =3.2x10-40 Manipulate EQ 1 and 2 to solve for the net equation, EQ3: EQ3 (net): 3H2O+ Bi3+(aq) +3NH3(aq) ßàBi(OH)-(s) +3NH4+(aq) Write the mass law expression for the...
1. Solid calcium fluoride (CaF2) establishes the following equilibrium in solution: CaF2(s) = Ca2+(aq) + 2F-(aq) Ke = 1.5 x 10-10 A solution initially contains 2.45 g of CaF2. a. In which direction will the reaction move to reach equilibrium? Explain your reasoning b. Calculate the equilibrium concentrations of Ca2+ and F. How much CaF2 (in mg) dissolves in solution? c. Another solution initially contains 2.45 g of CaF2 and 0.0025 M NaF. What are the equilibrium concentrations of Ca2+...
2. The equilibrium constant for the following reaction is called the "solubility product" of calcium fluoride: CaF2(s) - Cal(aq) + 2F-(ay) K = Kp = 3.2 x 10-11 (a) Write an expression for the equilibrium constant of this reaction in terms of concentrations. Why do you suppose we call this a solubility product instead of a solubility quotient or ratio? (b) Calculate the equilibrium concentrations of Ca2+ and F if excess solid CaF is placed in water. (c) in which...
What reagent could not be used to separate Br from C032 when added to an aqueous solution containing both ions. Ca(NO3)2(a) None of these could be used to separate Brand CO 2 Cu(NO3)2(aq) Fe(NO3)2(aq) AgNO3(aq)
Help please! Show work
xercise 14.16 thodynamic 2. The equilibrium constant for the following reaction is called the fluoride: constant for the following reaction is called the "solubility product of calcium CaF2(s) - Ca2+(aq) + 2F (aq) K = K = 3.2 x 10-11 a write an expression for the equilibrium constant of this reaction in terms of concentrations. why do you suppose we call this a solubility product instead of a solubility quotient or ratio (b) Calculate the equilibrium...
When calcium nitrate, Ca(NO32, dissolves in water, it dissociates into its ions. We can represent that process by the following equation Ca(NO3)h(s) Ca2(aq) 2NOs(aq) When 1.5 mol calcium nitrate dissolves in water, how many moles of ions should be present in solution? O 9.0 moles of ions O 1.5 moles of ions O 30 moles of ions O 13.5 moles of ions O 45 moles of ions
04 (a) Calcium ions can be determined by precipitation of the oxalate according to the equation: Ca2+ (aq) + C2O42- (aq) = CaC204 (s) The solid may then be filtered off, washed and oxalic acid is regenerated by the addition of excess sulfuric acid. The amount of oxalic acid is then quantified by titration using potassium permanganate according to the equation: H2C204 + MnO4 + H+ = CO2 + Mn2+ + H20 (unbalanced) In an experiment to find the concentration...
I need all the help possible on this....thank you so much. I
attached two pics...its the same question. The first picture gives
background on the actual questions
2. A geologist found a large deposit of the mineral Fluorite, CaF2, within a pond of stagnant water that is undisturbed by biological activities. This mineral had been leached into the water and had established equilibrium at 25°C for a considerable length of time. The equation for the solvation of Fluorite in water...
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