Consider the dissolution of CaF2 in aqueous solution: CaF2 (s) ⇌ Ca(+2) (aq) + 2F(-) (aq)....
Consider the dissolution of CaF2 in aqueous solution: CaF2 (s) ⇌ Ca(+2) (aq) + 2F(-) (aq). If we start with 1M of undissolved CaF2 in a solution that already contains 0.015M of F(-) ions, what is the solubility of CaF2 at 298.15K in terms of molarity? (Hint: Look at the final simulated concentration of Ca(+2).)
A. 3.7E-7 M
B. 2.5E-6 M
C. 1.2E-5 M
Homework Answers
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Consider the dissolution of CaF2 in aqueous solution: CaF2 (s) ⇌
Ca(+2) (aq) + 2F(-) (aq)....
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+...
Ca(OH)2 (aq) + 2HCl (aq) CaCl2 (aq) + H2O (l) An aqueous solution of Ca(OH)2with a...
Ca(OH)2 (aq) + 2HCl (aq) CaCl2 (aq) + H2O (l)
An aqueous solution of Ca(OH)2with a concentration of
0.161 M was used to titrate 25.00 mL of aqueous HCl. 18.63
mL of the Ca(OH)2was required to reach the endpoint of
the titration. An aqueous solution of Ca(OH)2with a
concentration of 0.161 M was used to titrate 25.00 mL of
aqueous HCl. 18.63 mL of the Ca(OH)2was required to
reach the endpoint of the titration.
A) How many moles of base...
4 of 4 The dissolution reaction is CaCl2(8) Ca?" aq) + 2 Cl(aq) If a solution...
4 of 4 The dissolution reaction is CaCl2(8) Ca?" aq) + 2 Cl(aq) If a solution is made that is 0.15 M in this compound, CaCly, what are the concentrations of the two ions? M Cat MCX resubmit
Consider the dissolution of AB(s): AB(s)⇌A+(aq)+B−(aq) The generic metal hydroxide M(OH)2 has Ksp...
Consider the dissolution of AB(s): AB(s)⇌A+(aq)+B−(aq) The generic metal hydroxide M(OH)2 has Ksp = 6.85×10−12. (NOTE: In this particular problem, because of the magnitude of the Ksp and the stoichiometry of the compound, the contribution of OH− from water can be ignored. However, this may not always be the case.) 1. Le Châtelier's principle tells us that an increase in either [A+] or [B−] will shift this equilibrium to the left, reducing the solubility of AB. In other words, AB...
Consider a saturated AgBr solution that is also 0.050 M Ca(NO3)2. Ca(NO3)2(aq) + Ca2+ (aq) +...
Consider a saturated AgBr solution that is also 0.050 M Ca(NO3)2. Ca(NO3)2(aq) + Ca2+ (aq) + 2NO3 (aq) AgBr(s) Ag+ (aq) + Br-(aq) The thermodynamic solubility product (Kop) of AgBr is 5.0 x 10-13. What must be the molarity of Ag+ in the solution?
Consider a saturated AgBr solution that is also 0.050 M Ca(NO3)2. Ca(NO3)2(aq) + Ca2+ (aq) +...
Consider a saturated AgBr solution that is also 0.050 M Ca(NO3)2. Ca(NO3)2(aq) + Ca2+ (aq) + 2NO3(aq) AgBr(s) + Ag+ (aq) + Br (aq) The thermodynamic solubility product (Kyp) of AgBr is 5.0 x 10-13. What must be the molarity of Ag+ in the solution?
an aqueous solution of Ca(OH)2 with a concentration Ca(OH)2(ag)+2HC1 (aq)CaCl, (ag)+H,O() An aqueous solution of Ca(OH)2with...
an aqueous solution of Ca(OH)2 with a concentration
Ca(OH)2(ag)+2HC1 (aq)CaCl, (ag)+H,O() An aqueous solution of Ca(OH)2with a concentration of 0.164 M was used to titrate 25.00 mL of aqueous HCI. 16.53 mL of the Ca(OH)2was required to reach the endpoint of the titration. ACID-BASE TITRATIONS Introduction Pt A titration is the sequential addition of reactant to a solution containina other Part 1 (1 point) How many moles of base were required to react completely with the acid in this reaction?...
(References . An aqueous solution contains 4.60 g of calcium chloride, CaCl, per liter. What is...
(References . An aqueous solution contains 4.60 g of calcium chloride, CaCl, per liter. What is the molarity of CaCl? Molarity - b. When the compound dissolves in water, the calcium ions, Ca solution? and the chloride ions, CH, in the crystal go into the solution. What is the molar concentration of each ion in the Molar concentration M Cat Molar concentration MCI Submit Answer Try Another Version Previous Next
Consider the dissolution equation of lead(II) chloride. PbCl2 (s) Pb2+ (aq) + 2 C1- (aq) Suppose...
Consider the dissolution equation of lead(II) chloride. PbCl2 (s) Pb2+ (aq) + 2 C1- (aq) Suppose you add 0.2331 g of PbCl2(s) to 50.0 mL of water. In the resulting saturated solution, you find that the concentration of Pb2+ (aq) is 0.0159 M and the concentration of Cl - (aq) is 0.0318 M. What is the value of the equilibrium constant, Ksp, for the dissolution of PbCl2? Answer:
An aqueous solution of Ca(OH)2with a concentration of 0.143 M was used to titrate 25.00 mL...
An aqueous solution of Ca(OH)2with a concentration of
0.143 M was used to titrate 25.00 mL of aqueous HCl. 14.73
mL of the Ca(OH)2was required to reach the endpoint of
the titration.
How many moles of base were required to react completely with the
acid in this reaction?
How many moles of HCl were present in the original 25.00 mL of
acid?
What is the molarity of the original HCl solution?
04 Question (a points) aSee page 166 Watch 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+...
Ca(OH)2 (aq) + 2HCl (aq) CaCl2 (aq) + H2O (l)
An aqueous solution of Ca(OH)2with a concentration of
0.161 M was used to titrate 25.00 mL of aqueous HCl. 18.63
mL of the Ca(OH)2was required to reach the endpoint of
the titration. An aqueous solution of Ca(OH)2with a
concentration of 0.161 M was used to titrate 25.00 mL of
aqueous HCl. 18.63 mL of the Ca(OH)2was required to
reach the endpoint of the titration.
A) How many moles of base...
4 of 4 The dissolution reaction is CaCl2(8) Ca?" aq) + 2 Cl(aq) If a solution is made that is 0.15 M in this compound, CaCly, what are the concentrations of the two ions? M Cat MCX resubmit
Consider a saturated AgBr solution that is also 0.050 M Ca(NO3)2. Ca(NO3)2(aq) + Ca2+ (aq) + 2NO3 (aq) AgBr(s) Ag+ (aq) + Br-(aq) The thermodynamic solubility product (Kop) of AgBr is 5.0 x 10-13. What must be the molarity of Ag+ in the solution?
Consider a saturated AgBr solution that is also 0.050 M Ca(NO3)2. Ca(NO3)2(aq) + Ca2+ (aq) + 2NO3(aq) AgBr(s) + Ag+ (aq) + Br (aq) The thermodynamic solubility product (Kyp) of AgBr is 5.0 x 10-13. What must be the molarity of Ag+ in the solution?
an aqueous solution of Ca(OH)2 with a concentration
Ca(OH)2(ag)+2HC1 (aq)CaCl, (ag)+H,O() An aqueous solution of Ca(OH)2with a concentration of 0.164 M was used to titrate 25.00 mL of aqueous HCI. 16.53 mL of the Ca(OH)2was required to reach the endpoint of the titration. ACID-BASE TITRATIONS Introduction Pt A titration is the sequential addition of reactant to a solution containina other Part 1 (1 point) How many moles of base were required to react completely with the acid in this reaction?...
(References . An aqueous solution contains 4.60 g of calcium chloride, CaCl, per liter. What is the molarity of CaCl? Molarity - b. When the compound dissolves in water, the calcium ions, Ca solution? and the chloride ions, CH, in the crystal go into the solution. What is the molar concentration of each ion in the Molar concentration M Cat Molar concentration MCI Submit Answer Try Another Version Previous Next
Consider the dissolution equation of lead(II) chloride. PbCl2 (s) Pb2+ (aq) + 2 C1- (aq) Suppose you add 0.2331 g of PbCl2(s) to 50.0 mL of water. In the resulting saturated solution, you find that the concentration of Pb2+ (aq) is 0.0159 M and the concentration of Cl - (aq) is 0.0318 M. What is the value of the equilibrium constant, Ksp, for the dissolution of PbCl2? Answer:
An aqueous solution of Ca(OH)2with a concentration of
0.143 M was used to titrate 25.00 mL of aqueous HCl. 14.73
mL of the Ca(OH)2was required to reach the endpoint of
the titration.
How many moles of base were required to react completely with the
acid in this reaction?
How many moles of HCl were present in the original 25.00 mL of
acid?
What is the molarity of the original HCl solution?
04 Question (a points) aSee page 166 Watch the...
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