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QUESTION 21 A solution is 0.012 Min Pb(NO3)2 and 0.20 Min Sr(NO3)2. Solid Na2SO4 is added...
please answer both questions QUESTION 20 The concentration of H30 in a solution is 7 x...
please answer both questions
QUESTION 20 The concentration of H30 in a solution is 7 x 10 Mat 25 °C. What is its hydroxide ion concentration? а. 1 x 10-10 M b. 3x 10-10 м 2* 10 10 M d. 1 x 10-1 M X 7x 104 M QUESTION 21 A solution is 0.012 Min Pb(NO3)2 and 0.20 Min Sr(NO3)2. Solid Na2SO4 is added until a precipitate just begins to form. The and the concentration of sulfate ion at this...
pt Solid Na SO, is added slowly to a solution that is 0.76M in Pb(NO3), and...
pt Solid Na SO, is added slowly to a solution that is 0.76M in Pb(NO3), and 0.45M in Ba (NO3),. In what order will solid PbSO4 and BaSO4 form? Calculate the percentage of Ba2+ that precipitates just before PbSo, begins to precipitate. Assume that Ksp (PbSO4) = 1.8 x 10-8 and Kg (BaSO4) = 1.1 x 10-20 will precipitate first. pe Percentage =
23. Will a precipitate form when 100. mL of 8.0x 103 M Pb(NO3)2 is added to...
23. Will a precipitate form when 100. mL of 8.0x 103 M Pb(NO3)2 is added to 400. mL of 5.0 x 10-3 M Na2SO4? The Ksp of PbSO4 is 6.3 x 10-7 A. No precipitate forms because Qsp Ksp B. Yes, a precipitate forms because Qsp>Ksp C. No precipitate forms because Qsp> Ksp es, a precipitate forms because Qsp Ksp
When 0.10 L of 8.0 x 103M Pb(NO3)2 is mixed with 0.40 L of 5.0 x...
When 0.10 L of 8.0 x 103M Pb(NO3)2 is mixed with 0.40 L of 5.0 x 10-3M Na2SO4, will a precipitate form? (Ksp for PbSO4-6.3 x 107) PbSO4(s) = Pb2+ (aq) + SO42-(aq) O yes because Q<Ksp yes because Q> Ksp Ono because Q > Ksp Ono because Q<Ksp no because Q - Kup
Solid sodium sulfate, Na2SO4, is added slowly to a solution that is 1.0 x 10-4 in...
Solid sodium sulfate, Na2SO4, is added slowly to a solution that is 1.0 x 10-4 in both Ba2+ and Pb2+ until [SO42-] reaches 1.0 x 10^-4 M. Would either BaSO4 (Ksp = 1.1 x 10^-10) or PbSO4 (Ksp = 1.7 x 10^-8) precipitate under these conditions?
QUESTION 18 1 points Save Answer Will a precipitate form when 20.0 mL of 1.8 x...
QUESTION 18 1 points Save Answer Will a precipitate form when 20.0 mL of 1.8 x 10-3 M Pb(NO3)2 is added to 30.0 mL of 5.0 x 10-4 M Na2SO4? The Ksp of (PbSO4) is 6.3 x 10-7. OA. yes, because the ion product > Ksp OB. no, because the ion product< OC.no, because the ion product > Ksp OD. 'yes, because the ion product < Ksp Ksp ОЕ. no, because Ksp is less than the ion product
Suppose a solution is made containing 7.3 x 10-3 M Sr(NO3)2(aq) and 8.3 x 102 M...
Suppose a solution is made containing 7.3 x 10-3 M Sr(NO3)2(aq) and 8.3 x 102 M NaF (aq). Calculate Q and determine whether a precipitate of SrF2 (s) will form. (In other words, which of the following is entirely correct?) Ksp of SrF2 = 2.8 x 10-9 a. Q = 5.0 x 105, ppt forms b. Q = 5.0 x 10-5, no ppt c. Q = 2.0 x 104 ppt forms d. Q = 6.1 x 104.ppt forms e. Q...
Question 25 (4 points) Solutions of Pb(NO3)2 and NaCl are mixed to form a solution with...
Question 25 (4 points) Solutions of Pb(NO3)2 and NaCl are mixed to form a solution with final concentrations 0.01 M of Pb(NO3)2 and 0.025 M of NaCl. What will happen once these solutions are mixed? For PbCl, Ksp = 1.7 x 10-5. Sodium nitrate will precipitate, leaving an unsaturated solution of PbCl2 Nothing will happen, there will be no precipitate. Lead chloride will precipitate out of solution, leaving an unsaturated solution of PbCl2 Lead chloride will precipitate out of solution,...
The molarity of a Pb(NO3)2 solution is 0.120M. Solid Na2CrO4 is dissolved in 1 L of...
The molarity of a Pb(NO3)2 solution is 0.120M. Solid Na2CrO4 is dissolved in 1 L of this solution until 99.90% of the Pb2+ has been precipitated as PbCrO4. What is the concentration of (CrO4)2-, in mol L^-1, in the solution at this point? (PbCrO4 Ksp = 1.8 x 10^-14) A. 1.8 x 10^-17 B. 1.8 x 10^-14 C. 1.5 x 10^-10 D. 1.5 x 10^-13 E. 1.3 x 10^-7
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...
please answer both questions
QUESTION 20 The concentration of H30 in a solution is 7 x 10 Mat 25 °C. What is its hydroxide ion concentration? а. 1 x 10-10 M b. 3x 10-10 м 2* 10 10 M d. 1 x 10-1 M X 7x 104 M QUESTION 21 A solution is 0.012 Min Pb(NO3)2 and 0.20 Min Sr(NO3)2. Solid Na2SO4 is added until a precipitate just begins to form. The and the concentration of sulfate ion at this...
pt Solid Na SO, is added slowly to a solution that is 0.76M in Pb(NO3), and 0.45M in Ba (NO3),. In what order will solid PbSO4 and BaSO4 form? Calculate the percentage of Ba2+ that precipitates just before PbSo, begins to precipitate. Assume that Ksp (PbSO4) = 1.8 x 10-8 and Kg (BaSO4) = 1.1 x 10-20 will precipitate first. pe Percentage =
23. Will a precipitate form when 100. mL of 8.0x 103 M Pb(NO3)2 is added to 400. mL of 5.0 x 10-3 M Na2SO4? The Ksp of PbSO4 is 6.3 x 10-7 A. No precipitate forms because Qsp Ksp B. Yes, a precipitate forms because Qsp>Ksp C. No precipitate forms because Qsp> Ksp es, a precipitate forms because Qsp Ksp
When 0.10 L of 8.0 x 103M Pb(NO3)2 is mixed with 0.40 L of 5.0 x 10-3M Na2SO4, will a precipitate form? (Ksp for PbSO4-6.3 x 107) PbSO4(s) = Pb2+ (aq) + SO42-(aq) O yes because Q<Ksp yes because Q> Ksp Ono because Q > Ksp Ono because Q<Ksp no because Q - Kup
QUESTION 18 1 points Save Answer Will a precipitate form when 20.0 mL of 1.8 x 10-3 M Pb(NO3)2 is added to 30.0 mL of 5.0 x 10-4 M Na2SO4? The Ksp of (PbSO4) is 6.3 x 10-7. OA. yes, because the ion product > Ksp OB. no, because the ion product< OC.no, because the ion product > Ksp OD. 'yes, because the ion product < Ksp Ksp ОЕ. no, because Ksp is less than the ion product
Suppose a solution is made containing 7.3 x 10-3 M Sr(NO3)2(aq) and 8.3 x 102 M NaF (aq). Calculate Q and determine whether a precipitate of SrF2 (s) will form. (In other words, which of the following is entirely correct?) Ksp of SrF2 = 2.8 x 10-9 a. Q = 5.0 x 105, ppt forms b. Q = 5.0 x 10-5, no ppt c. Q = 2.0 x 104 ppt forms d. Q = 6.1 x 104.ppt forms e. Q...
Question 25 (4 points) Solutions of Pb(NO3)2 and NaCl are mixed to form a solution with final concentrations 0.01 M of Pb(NO3)2 and 0.025 M of NaCl. What will happen once these solutions are mixed? For PbCl, Ksp = 1.7 x 10-5. Sodium nitrate will precipitate, leaving an unsaturated solution of PbCl2 Nothing will happen, there will be no precipitate. Lead chloride will precipitate out of solution, leaving an unsaturated solution of PbCl2 Lead chloride will precipitate out of solution,...
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...
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