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Question 10 1 pts A solution contains Pb2+, Cu2+ and Zn2+ ions. An aqueous solution of...
Question 10 1 pts A solution contains Pb?, Cu2+ and Zn2+ ions. An aqueous solution of...
Question 10 1 pts A solution contains Pb?, Cu2+ and Zn2+ ions. An aqueous solution of Na,Co, is added slowly, one drop at a time. Which statement(s) is/are true? Select all. Kop POCO3 7.4 x 10-14 CuCoz 3x 10-12 ZnCO3 1.0 x 10-10 All of the metal carbonates will precipitate at the same time. The precipitates will form in this order: ZnCO3, then Cucos, then Pbco, The precipitates will form in this order: Pbco, then Cucos, then Znco, The precipitates...
please solve and show work! A solution of 0.10 M (each) Ni2+ and Cu2+ are separated...
please solve and show work!
A solution of 0.10 M (each) Ni2+ and Cu2+ are separated using selective precipitation by the addition of solid Na2CO3. Assuming no volume change upon this addition, how much of the first precipitated ion remains at the point where the second ion begins to precipitate? Ksp of NiCO3 = 1.4'10-7 Ksp of CuCO3 = 2.510-10 A. 1.4 x 10-6 M CUCO3 B. 1.2 x 102 M CUCO3 C. 1.8x 10-4M NICO D. 1.4 x 106...
Question 6 1 pts Solid Pb(NO3)2 is added to a solution that contains CO2- anions. Which...
Question 6 1 pts Solid Pb(NO3)2 is added to a solution that contains CO2- anions. Which best describes the condition when PbCO3 precipitates out of the solution? Ksp of PbCO3 is 7.4 x 10-14 Ksp of PbCO3 Qof PbCO3 Qof Pbcoз > Ksp of PЬCOЗ Qof Pbco <Ksp of PЬCOЗ
Suppose you slowly add solid sodium carbonate (Na2CO3) to a solution that contains 0.030 M Pb2+...
Suppose you slowly add solid sodium carbonate (Na2CO3) to a solution that contains 0.030 M Pb2+ and 0.030 M Ni2+. What is the minimum concentration of CO32– that would cause a precipitate to form? (Assume no volume change; for PbCO3, Ksp = 7.4x10–11, and for NiCO3, Ksp = 1.3x10–7)
7. (20 pts) A scientist has 100 mL of a solution that contains four metal ions,...
7. (20 pts) A scientist has 100 mL of a solution that contains four metal ions, Ca2, Cu2, Pb2, and K*. He takes 50 mL and adds 2.5 grams of Na2SO4 which precipitates the Ca2 and the Pb2. This precipitate is filtered form the solution and redissolved in 20 mL of 6 M HNO3. He then adds 20 mL of 1.005 M EDTA and back titrates with 23.54 mL of 0.1954 M Zn2 He then adds a masking agent that...
A solution contains 0.100 mM of Ni2+ and Zn2+. Hydroxyl ions are slowly added to this...
A solution contains 0.100 mM of Ni2+ and Zn2+. Hydroxyl ions are slowly added to this solution to precipitate either Ni(OH)2 or Zn(OH)2. Determine which ion precipitates first at the pH range from 0-14 and the range of OH- concentrations that will allow a clean separation of the two ions. Ksp for Ni(OH)2=6x10^-16 and for Zn(OH)2 Ksp=3x10^-16
An aqueous solution contains 0.034 M Brand 0.079 MT. A chemist wishes to do a fractional...
An aqueous solution contains 0.034 M Brand 0.079 MT. A chemist wishes to do a fractional precipitation experiment in which he slowly adds Pb+2, which can form ppts of PbBr2 (s) [Ksp = 4.6 x 106 and Pbl2(S) [Ksp= 8.4 x 10 °). Which of the following is entirely correct? a. I precipitates first when [Pb2+1 = 3.4 x 10-7M b. Br precipitates first when [Pb2+] = 1.4 x 10-4M c. I'precipitates first when [Pb2+] = 1.1 x 10-7M d....
An aqueous solution contains 0.3 M Cl'and 0.4 MF: A chemist wishes to do a fractional...
An aqueous solution contains 0.3 M Cl'and 0.4 MF: A chemist wishes to do a fractional precipitation experiment in which he slowly adds Pb2+, which can form ppts of PbCl2(s) [K sp = 1.6 x 10-6] and PbF, (s) [Ksp = 7.1 x 10-7]. Which of the following is entirely correct? Pb2+ 0.3 M cl- 0.4M F- Cl precipitates first when [Pb2+] = 1.8 x 10-4 M. OF precipitates first when [Pb2+] = 1.0 x 10-4M. Cl precipitates first when...
Question 10 The equilibrium of a ZnS precipitate with an aqueous solution of Zn2+ where H2S...
Question 10 The equilibrium of a ZnS precipitate with an aqueous solution of Zn2+ where H2S gas is bubbled through the solution is described by the following chemical equation and equilibrium constant Zn(s) + 2H+ (aq) = Zn2+ (aq) + H250g) K25 t = 0.11 Given that the Zn ion concentration in the solution is 100 10-6 M with a pH of 4.0. if the partial pressure of H2S is 0 01 am then, the solution is undersaturated and a...
1. 200 mL of an aqueous solution contains 0.030 M concentrations of both Pb2+ and Ag+....
1. 200 mL of an aqueous solution contains 0.030 M concentrations of both Pb2+ and Ag+. If 100 mL of 6.0 x 10-2 M NaCl is added to this solution will a precipitate form? If so, what will the precipitate be? The Ksp values for PbCl2 and AgCl are 1.7 x 10-5 and 1.8 x 10-
Question 10 1 pts A solution contains Pb?, Cu2+ and Zn2+ ions. An aqueous solution of Na,Co, is added slowly, one drop at a time. Which statement(s) is/are true? Select all. Kop POCO3 7.4 x 10-14 CuCoz 3x 10-12 ZnCO3 1.0 x 10-10 All of the metal carbonates will precipitate at the same time. The precipitates will form in this order: ZnCO3, then Cucos, then Pbco, The precipitates will form in this order: Pbco, then Cucos, then Znco, The precipitates...
please solve and show work!
A solution of 0.10 M (each) Ni2+ and Cu2+ are separated using selective precipitation by the addition of solid Na2CO3. Assuming no volume change upon this addition, how much of the first precipitated ion remains at the point where the second ion begins to precipitate? Ksp of NiCO3 = 1.4'10-7 Ksp of CuCO3 = 2.510-10 A. 1.4 x 10-6 M CUCO3 B. 1.2 x 102 M CUCO3 C. 1.8x 10-4M NICO D. 1.4 x 106...
Question 6 1 pts Solid Pb(NO3)2 is added to a solution that contains CO2- anions. Which best describes the condition when PbCO3 precipitates out of the solution? Ksp of PbCO3 is 7.4 x 10-14 Ksp of PbCO3 Qof PbCO3 Qof Pbcoз > Ksp of PЬCOЗ Qof Pbco <Ksp of PЬCOЗ
7. (20 pts) A scientist has 100 mL of a solution that contains four metal ions, Ca2, Cu2, Pb2, and K*. He takes 50 mL and adds 2.5 grams of Na2SO4 which precipitates the Ca2 and the Pb2. This precipitate is filtered form the solution and redissolved in 20 mL of 6 M HNO3. He then adds 20 mL of 1.005 M EDTA and back titrates with 23.54 mL of 0.1954 M Zn2 He then adds a masking agent that...
An aqueous solution contains 0.034 M Brand 0.079 MT. A chemist wishes to do a fractional precipitation experiment in which he slowly adds Pb+2, which can form ppts of PbBr2 (s) [Ksp = 4.6 x 106 and Pbl2(S) [Ksp= 8.4 x 10 °). Which of the following is entirely correct? a. I precipitates first when [Pb2+1 = 3.4 x 10-7M b. Br precipitates first when [Pb2+] = 1.4 x 10-4M c. I'precipitates first when [Pb2+] = 1.1 x 10-7M d....
An aqueous solution contains 0.3 M Cl'and 0.4 MF: A chemist wishes to do a fractional precipitation experiment in which he slowly adds Pb2+, which can form ppts of PbCl2(s) [K sp = 1.6 x 10-6] and PbF, (s) [Ksp = 7.1 x 10-7]. Which of the following is entirely correct? Pb2+ 0.3 M cl- 0.4M F- Cl precipitates first when [Pb2+] = 1.8 x 10-4 M. OF precipitates first when [Pb2+] = 1.0 x 10-4M. Cl precipitates first when...
Question 10 The equilibrium of a ZnS precipitate with an aqueous solution of Zn2+ where H2S gas is bubbled through the solution is described by the following chemical equation and equilibrium constant Zn(s) + 2H+ (aq) = Zn2+ (aq) + H250g) K25 t = 0.11 Given that the Zn ion concentration in the solution is 100 10-6 M with a pH of 4.0. if the partial pressure of H2S is 0 01 am then, the solution is undersaturated and a...
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