20. Ethylenediaminetetraacetate (EDTA4-) is used as a complexing agent in chemical analysis. Solu...
20. Ethylenediaminetetraacetate (EDTA4-) is used as a complexing agent in chemical analysis. Solutions of EDTA4- are used to treat heavy metal poisoning by removing the heavy metal in the form of a soluble complex ion. The complex [Pb(EDTA]2- has Kf = 1.1 x 1018.
a. Calculate the concentration of Pb2+ in a saturated solution of Pb(OH)2, Ksp = 1.2 x 10-15.
b. Calculate the concentration of Pb2+ in a saturated solution of Pb(OH)2 buffered at pH 13.00
c. Calculate the concentration of Pb2+ in a 1.0 L solution containing 0.050 M Na4EDTA with 0.010 mole Pb(NO3)2 added (assume negligible volume change due to addition of this solid).
d. Consider a solution with 0.010 mole Pb(NO3)2 added to 1.0 L of an aqueous solution buffered at pH = 13.00 and also containing 0.050 M Na4EDTA. Does Pb(OH)2 precipitate from this solution?
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20. Ethylenediaminetetraacetate (EDTA4-) is used as a complexing agent in chemical analysis. Solu...
The Kf for the formation of the complex ion between Pb2+ and EDTA4− is 1.0 ×...
The Kf for the formation of the complex ion between Pb2+ and EDTA4− is 1.0 × 1018 at 25° C. Pb2+ + EDTA4− ⇌ Pb(EDTA)2− Calculate the [ Pb2+ ] at equilibrium in a solution containing 2.50 × 10−3 M Pb2+ and 3.50 × 10−3 M EDTA4
In the presence of excess OH-, the Al3+(aq) ion forms a hydroxide complex ion, Al(OH)4-. Calculate the concentration of...
In the presence of excess OH-, the Al3+(aq) ion forms a hydroxide complex ion, Al(OH)4-. Calculate the concentration of free Al3+ ion when 1.32×10-2 mol Al(NO3)3(s) is added to 1.00 L of solution in which [OH- ] is held constant (buffered at pH 13.00). For Al(OH)4-, Kf = 1.1×1033. [Al3+] = ?M
Calculate concentration of species in a solution containing a complex ion In the presence of excess...
Calculate concentration of species in a solution containing a complex ion In the presence of excess OH, the Al3 (aq) ion forms a hydroxide complex ion, AIOH)4. Calculate the concentration of free Al3 ion when 1.46*102 mol Al(NO3)3(s) is added to 1.00 L of solution in which [OH-] is held constant (buffered at pH 12.60). For Al(OH)4, K?1.1x1033.
to answer number 28. you refer back to 24. but im stuck on it ans confused....
to answer number 28. you refer back to 24. but im stuck on it
ans confused.
2NaC1 HOH c. + MgC12 + H2S04> Na2S04+2HCI d. Ca(OH)2+ Pb(NO3)2> Ca(NO3)2 + Pb(OH)2 3 parts) What is the H+ concentration and pH of a 0.20 M solution of hypochlorous acid, Ka 3.5 x 10*? (SHOW ALL STEPS FOR CR CONC. AND SOLVE FOR 22.pH ) 20. ICE CHART, sOLVE FOR 21 23. What is the hydroxide ion concentration and pH of a 0.10...
Calculate concentration of species in a solution containing a complex ion. Close Problem In the p...
Calculate concentration of species in a solution containing a complex ion. Close Problem In the presence of excess OH-, the Al3+(aq) ion forms a hydroxide complex ion, Al(OH)4-. Calculate the concentration of free Al3+ ion when 1.21×10-2 mol Al(CH3COO)3(s) is added to 1.00 L of solution in which [OH- ] is held constant (buffered at pH 12.60). For Al(OH)4-, Kf = 1.1×1033. [Al3+] = M
Calculate concentration of species in a solution containing a complex ion. In the presence of excess...
Calculate concentration of species in a solution containing a complex ion. In the presence of excess OH^ -, the Al^ 3+ (aq) ion forms a hydroxide complex ion, Al(OH)^ -_4. Calculate the concentration of free Al^ 3+ ion when 1.64 times 10^-2 mol Al(CH_3COO)_3(s) is added to 1.00 L of solution in which [OH^ -] is held constant (buffered at pH 12.10). For Al(OH)_4^ -, K_f = 1.1 times 10^33.
Write the balanced chemical equation for each of the reactions. Include phases. When aqueous sodium hydroxide...
Write the balanced chemical equation for each of the reactions. Include phases. When aqueous sodium hydroxide is added to a solution containing lead(II) nitrate, a solid precipitate forms. equation: 2 NaOH + Pb(NO3)2 + Pb(OH), + 2NaNO, However, when additional aqueous hydroxide is added, the precipitate redissolves, forming a soluble (Pb(OH),12- (aq) complex ion. equation: Pb(OH), +20H (Pb(OH) 2 -
In the presence of excess OH-, the Zn2+(aq) ion forms a hydroxide complex ion, Zn(OH)42-. Calculate...
In the presence of excess OH-, the Zn2+(aq) ion forms a hydroxide complex ion, Zn(OH)42-. Calculate the concentration of free Zn2+ ion when 1.57×10-2 mol Zn(NO3)2(s) is added to 1.00 L of solution in which [OH- ] is held constant (buffered at pH 12.20). For Zn(OH)42-, Kf = 4.6×1017. [Zn2+]=___M please explain
question 17 & 18 Q17. A 5.0 x 10-M solution of Mn is gradually made more...
question 17 & 18
Q17. A 5.0 x 10-M solution of Mn is gradually made more basic by adding NaOH. At what pH will manganese(II) hydroxide begin to precipitate? For Mn(OH)2. Kip - 2.0 x 10-13 Q18. A solution is 0.010 M in each of Pb(NO3)2. Mn(NO3). and Zn(NO3)2. Solid NaOH is added until the pH of the solution is 8.50. Which of these three metal ion(s) will precipitate as a hydroxide? Salt KR Pb(OH)2 1.4 x 10-20 Mn(OH)2 Zn(OH)2...
Calculate the solubility of barium sulfate. BaSO4 in units of grams per liter. Ksp (BaSO4) =...
Calculate the solubility of barium sulfate. BaSO4 in units of grams per liter. Ksp (BaSO4) = 1.1x10-10 solubility = AL The equilibrium concentration of chloride ion in a saturated lead chloride solution is M. In the presence of excess OH, the Ar+ (aq) ion forms a hydroxide complex ion. Al(OH)4 Calculate the concentration of free Ap+ ion when 1.56x10-mol Al(CH2C00)3(s) is added to 1.00 L of solution in which [OH-] is held constant (buffered at pH 12.10). For Al(OH)4, Ke=...
Calculate concentration of species in a solution containing a complex ion In the presence of excess OH, the Al3 (aq) ion forms a hydroxide complex ion, AIOH)4. Calculate the concentration of free Al3 ion when 1.46*102 mol Al(NO3)3(s) is added to 1.00 L of solution in which [OH-] is held constant (buffered at pH 12.60). For Al(OH)4, K?1.1x1033.
to answer number 28. you refer back to 24. but im stuck on it
ans confused.
2NaC1 HOH c. + MgC12 + H2S04> Na2S04+2HCI d. Ca(OH)2+ Pb(NO3)2> Ca(NO3)2 + Pb(OH)2 3 parts) What is the H+ concentration and pH of a 0.20 M solution of hypochlorous acid, Ka 3.5 x 10*? (SHOW ALL STEPS FOR CR CONC. AND SOLVE FOR 22.pH ) 20. ICE CHART, sOLVE FOR 21 23. What is the hydroxide ion concentration and pH of a 0.10...
Calculate concentration of species in a solution containing a complex ion. In the presence of excess OH^ -, the Al^ 3+ (aq) ion forms a hydroxide complex ion, Al(OH)^ -_4. Calculate the concentration of free Al^ 3+ ion when 1.64 times 10^-2 mol Al(CH_3COO)_3(s) is added to 1.00 L of solution in which [OH^ -] is held constant (buffered at pH 12.10). For Al(OH)_4^ -, K_f = 1.1 times 10^33.
Write the balanced chemical equation for each of the reactions. Include phases. When aqueous sodium hydroxide is added to a solution containing lead(II) nitrate, a solid precipitate forms. equation: 2 NaOH + Pb(NO3)2 + Pb(OH), + 2NaNO, However, when additional aqueous hydroxide is added, the precipitate redissolves, forming a soluble (Pb(OH),12- (aq) complex ion. equation: Pb(OH), +20H (Pb(OH) 2 -
question 17 & 18
Q17. A 5.0 x 10-M solution of Mn is gradually made more basic by adding NaOH. At what pH will manganese(II) hydroxide begin to precipitate? For Mn(OH)2. Kip - 2.0 x 10-13 Q18. A solution is 0.010 M in each of Pb(NO3)2. Mn(NO3). and Zn(NO3)2. Solid NaOH is added until the pH of the solution is 8.50. Which of these three metal ion(s) will precipitate as a hydroxide? Salt KR Pb(OH)2 1.4 x 10-20 Mn(OH)2 Zn(OH)2...
Calculate the solubility of barium sulfate. BaSO4 in units of grams per liter. Ksp (BaSO4) = 1.1x10-10 solubility = AL The equilibrium concentration of chloride ion in a saturated lead chloride solution is M. In the presence of excess OH, the Ar+ (aq) ion forms a hydroxide complex ion. Al(OH)4 Calculate the concentration of free Ap+ ion when 1.56x10-mol Al(CH2C00)3(s) is added to 1.00 L of solution in which [OH-] is held constant (buffered at pH 12.10). For Al(OH)4, Ke=...
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