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![(a)mass and chargeare already balancedin the equation Ksp 13x10 Ksp = [Ca2+][C,042-] given. pH = 2.3 = 142.3 10-117 = 1.99x10](http://img.homeworklib.com/questions/f4efe250-8c23-11eb-9dc4-573ff30dba31.png?x-oss-process=image/resize,w_560)
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4. Consider a saturated solution of calcium oxalate, cac204, in which the following equilibrium can occur:...
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...
Scoring Scheme: 3-3-2-1 Part V. The chemical system containing the simultaneous equilibria involves the precipitation of...
Scoring Scheme: 3-3-2-1 Part V. The chemical system containing the simultaneous equilibria involves the precipitation of calcium oxalate in the presence of a weak diprotic acid, oxalic acid: Ca2+(aq) + C2042-(aq) ; CaC204(s) H2C204(aq) H20()FH30* (aq) HC204 (aq) HC204(aq)+ H20)H3(aq)+ C2042(aq) You added 10 drops of 6 M HCI to the solution of calcium chloride and oxalic acid. Which of the following statements explains your observations? a. The addition of H30t shifts the oxalic acid equilibria to the left, decreasing...
A liter of a solution saturated at 25°C with calcium oxalate, Cac,Oc. is evaporated to dryness,...
A liter of a solution saturated at 25°C with calcium oxalate, Cac,Oc. is evaporated to dryness, giving a 0.0061-g residue of Caczo. Calculate the solubility product constant for Caczo O K-3.9x107 Oko - 2.3 x 104 OK-8x102 OK-7.0 x 10 OK-2.3x10
parts a - d. please help!! 3) Antifreeze poisoning can be confirmed by the presence of...
parts a - d. please help!!
3) Antifreeze poisoning can be confirmed by the presence of calcium oxalate crystals (Figure 3, CaC2O4) in the urine in humans as well as in pets. (10 points) a) Give the balanced chemical equation for the dissolution of calcium oxalate, is what happens when CaC2O4(s) dissolves in water? C2022-is the formula for the oxalate ion (2 points) Figure 3: Calcium oxalate, 128.1 g/mol b) If the Kop of Cacz0, is 4.0 x 10", what...
What concentration of Calcium ion will be present at equilibrium in a solution that is saturated...
What concentration of Calcium ion will be present at equilibrium in a solution that is saturated with CaF2 and contains 0.01 M NaF? Ksp for CaF2 = 5.3 x 10−9
at must be the equilibrium concentration of Question 1 (5 pts). A. If the equilibrium concentration...
at must be the equilibrium concentration of Question 1 (5 pts). A. If the equilibrium concentration of Ce is 0.00010 M, what must be the oqu Cod in the solution? K (Ce (CO)) -59% 10%. (Answer: 3.9 x 10M] B. If the concentration of Ca?" of the solution in 1A is in will some CaCO, begin to precipitate? K (Caco) -1.3 x 10". (Hint: What is the the association of Caland Co, at these concentrations and how does that compare...
A saturated solution of calcium iodate contains 2.37 g/L of Ca(IO3)2. (a) What is the solubility...
A saturated solution of calcium iodate contains 2.37 g/L of Ca(IO3)2. (a) What is the solubility of calcium iodate in mol/L? (b) What are the concentrations of Ca2+ and IO3 – ion, respectively, in the saturated solution? (c) Calculate the Ksp value for Ca(IO3)2. Part b ) Silver ion, Ag+ , readily forms complex ion, Ag(S2O3)2 3– , with thiosulfate, S2O3 2– , according to the following equation: Ag+ (aq) + 2S2O3 2– (aq) ⇌ Ag(S2O3)2 3– (aq); Kf =...
A) 10x10 mol/L of BaCl2 are added to a saturated BaSO4 solution. Given that the solubility...
A) 10x10 mol/L of BaCl2 are added to a saturated BaSO4 solution. Given that the solubility product constant of barium sulfate is 1.2x10-10 find the equilibrium concentrations of Ba2+ and SO42- ions after the addition of BaCl2. B) The pH of an originally acidic solution containing 10-3 CaCl2 and 10-1 M oxalic acid (H2C204) is raised slowly. At what pH value will calcium oxalate (CaC204) first precipitate? ( Assume that CaCl2 completely dissociates into its constituent ions) Ksp (Ca C204)...
What concentration of Calcium ion will be present at equilibrium in a solution that is saturated...
What concentration of Calcium ion will be present at equilibrium in a solution that is saturated with CaF2 and contains 0.01 M NaF? Ksp for CaF2 = 5.3 x 10−9 A. 8.1 x 10−3 M B. 1.74 x 10−3 M C. None of these D. 1.74 x 10−5 M E. 5.3 x 10−5 M
7. Calcium carbonate is dissolved in a solution of 0.0500 M CaCl2 to make a saturated solution. (...
Explain How and Why, Thank you!
7. Calcium carbonate is dissolved in a solution of 0.0500 M CaCl2 to make a saturated solution. (a) Write all of the pertinent equilibrium reactions in this solution. (b) Write a charge balance equation for the solution. (c) Write two mass balance equations for the solution. (14 points) a Ho(H (aq)+OH (aq) CaCO, (s)Ca2 (a)COj (aq) cơ (aq) + H2O(1) HC0,(aq) + OH (aq) HCO, (a)+H20)- H2CO, (aq) +OH (aq) (e [c]-0.100 M [Ca2+]...
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...
Scoring Scheme: 3-3-2-1 Part V. The chemical system containing the simultaneous equilibria involves the precipitation of calcium oxalate in the presence of a weak diprotic acid, oxalic acid: Ca2+(aq) + C2042-(aq) ; CaC204(s) H2C204(aq) H20()FH30* (aq) HC204 (aq) HC204(aq)+ H20)H3(aq)+ C2042(aq) You added 10 drops of 6 M HCI to the solution of calcium chloride and oxalic acid. Which of the following statements explains your observations? a. The addition of H30t shifts the oxalic acid equilibria to the left, decreasing...
A liter of a solution saturated at 25°C with calcium oxalate, Cac,Oc. is evaporated to dryness, giving a 0.0061-g residue of Caczo. Calculate the solubility product constant for Caczo O K-3.9x107 Oko - 2.3 x 104 OK-8x102 OK-7.0 x 10 OK-2.3x10
parts a - d. please help!!
3) Antifreeze poisoning can be confirmed by the presence of calcium oxalate crystals (Figure 3, CaC2O4) in the urine in humans as well as in pets. (10 points) a) Give the balanced chemical equation for the dissolution of calcium oxalate, is what happens when CaC2O4(s) dissolves in water? C2022-is the formula for the oxalate ion (2 points) Figure 3: Calcium oxalate, 128.1 g/mol b) If the Kop of Cacz0, is 4.0 x 10", what...
at must be the equilibrium concentration of Question 1 (5 pts). A. If the equilibrium concentration of Ce is 0.00010 M, what must be the oqu Cod in the solution? K (Ce (CO)) -59% 10%. (Answer: 3.9 x 10M] B. If the concentration of Ca?" of the solution in 1A is in will some CaCO, begin to precipitate? K (Caco) -1.3 x 10". (Hint: What is the the association of Caland Co, at these concentrations and how does that compare...
A) 10x10 mol/L of BaCl2 are added to a saturated BaSO4 solution. Given that the solubility product constant of barium sulfate is 1.2x10-10 find the equilibrium concentrations of Ba2+ and SO42- ions after the addition of BaCl2. B) The pH of an originally acidic solution containing 10-3 CaCl2 and 10-1 M oxalic acid (H2C204) is raised slowly. At what pH value will calcium oxalate (CaC204) first precipitate? ( Assume that CaCl2 completely dissociates into its constituent ions) Ksp (Ca C204)...
Explain How and Why, Thank you!
7. Calcium carbonate is dissolved in a solution of 0.0500 M CaCl2 to make a saturated solution. (a) Write all of the pertinent equilibrium reactions in this solution. (b) Write a charge balance equation for the solution. (c) Write two mass balance equations for the solution. (14 points) a Ho(H (aq)+OH (aq) CaCO, (s)Ca2 (a)COj (aq) cơ (aq) + H2O(1) HC0,(aq) + OH (aq) HCO, (a)+H20)- H2CO, (aq) +OH (aq) (e [c]-0.100 M [Ca2+]...
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