What concentration of aqueous NH3 is necessary to just start precipitation of Mn(OH)2 from a 0.020 M solution of MnSO4? Kb for ammonia is 1.8 x 10-5, Ksp for Mn(OH)2 is 4.6 x 10-141.4 × 10-5 M3.7 × 10-7 M1.3 × 10-7 M1.6 × 10-6 M8.4 x 10-2 M

Concentration of MnSO4 solution = 0.02 M Kb of ammonia is 1.8 x 10-5 Ksp of Mn(OH)2 is 4.6 x 10-14

Answered: What concentration of aqueous NH3 is…

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter17: Principles Of Chemical Reactivity: Other Aspects Of Aqueous Equilibria

Section17.5: Precipitation Reactions

Problem 17.13CYU

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What concentration of aqueous NH₃ is necessary to just start precipitation of Mn(OH)₂ from a 0.020 M solution of MnSO₄? K_b for ammonia is 1.8 x 10^-5, K_sp for Mn(OH)₂ is 4.6 x 10^-14

1.4 × 10^-5 M

3.7 × 10^-7 M

1.3 × 10^-7 M

1.6 × 10^-6 M

8.4 x 10^-2 M

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