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A solution is prepared to be 1.00M in NH4OH (or NH3) and 1.00M in (NH4)2SO4. What...
A solution contains 0.60 M NH4OH and 1.50 M NH4Cl. What is the maxiumum concentration of Mg2+ that can be present in such a solution without precipitating Mg(OH)2? (Ksp for Mg(OH)2 = 9.0 x 10^12; Kb fro NH4OH= 1.8 x 10^-5)
Question 2 0/1 pts A solution was prepared by dissolving 8.03 g of (NH4)2SO4 (MW = 132.14 g/mol; specific volume = .565 ml/g) in 35.0 ml of water. The final volume of the solution is __ml. Question 3 0/2 pts A solution was prepared by dissolving 8.03 g of (NH4)2SO4 (MW = 132.14 g/mol; specific volume = .565 ml/g) in 35.0 ml of water. The concentration of (NH4)2SO4 in the solution is ___%(w/v).
When ammonium sulfate dissolves, both the anion and cation have acid-base reactions: (NH4)2SO4(s) ⇄ 2NH4+ + SO42- Ksp = 276 NH4+ ⇄ NH3(aq) + H+ Ka = 5.7x10-10 SO42- + H2O ⇄ HSO4- + OH- Kb = 9.8x10-13 a. Write charge balance and mass balances b. Compute the concentration of NH3(aq) if pH is 9.25
what is the molar concentration of NH4+ ions in a 3.1 M solution of (NH4)2SO4?
what is the molar concentration of NH4+ lions in a 3.1 M solution of (NH4)2SO4
what are the equilibrium concentration of NH3, NH4+ and OH- in 0.15M solution ammonia.
2. A solution is 0.10M in Mg(NO3)2. a. What concentration of OH is required to just start precipitation of Mg(OH)2? (Ksp = 1.5x10-11) b. If NH3/NH4+ buffer is used to control the pH, and [NH3] = 0.10 M, what concentration of NH4 is required to prevent the precipitation of Mg(OH)2?
Ju stion completid huffer solution is prepared in which the concentration of NH3 is 0.30 M and the concentration of NH4 is 0.20 M. What is the pH of this solution? The equilibrium constant, Kb for NH3 equals 1.8 x 105. O 8.73 O 9.08 O 9.43 O 11.72
What are the equilibrium concentrations of NH3, NH4+, and OH- in a 0.95 M solution of ammonia? Kb = 1.8x10^-5 What is the pH of the solution? pH =
21. What is the molar solubility of Mn(OH)2(s) in a solution that is buffered at pH 8.00 at 25 °C? The Ksp of Mn(OH)2 is 1.9 x 10- at 25 °C. The concentration of Pb in an aqueous solution is 5.5 x 103 M. What concentration of SO required to begin precipitating PbSO? The Ksp of PbSOa is 2.5 x 10 is 22. must be added to 1,0 L of 0.0180 M Pb2 (aq) to 23. What mass of KCl...