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11 Dec 2019
A solution of NaOH is added dropwise to a solution that is 0.0850 M in Fe2+ and 5.33e-11 M in Ga3+.
The Ksp of Fe(OH)2 is 4.87e-17.
The Ksp of Ga(OH)3 is 7.28e-36.
(a) What concentration of OH- is necessary to begin precipitation? (Neglect volume changes.)
[OH-] = M.
(b) Which cation precipitates first?
Fe2+Ga3+
(c) What is the concentration of OH- when the second cation begins to precipitate?
[OH-] = M.
A solution of NaOH is added dropwise to a solution that is 0.0850 M in Fe2+ and 5.33e-11 M in Ga3+.
The Ksp of Fe(OH)2 is 4.87e-17.
The Ksp of Ga(OH)3 is 7.28e-36.
(a) What concentration of OH- is necessary to begin precipitation? (Neglect volume changes.)
[OH-] = M.
(b) Which cation precipitates first?
Fe2+Ga3+
(c) What is the concentration of OH- when the second cation begins to precipitate?
[OH-] = M.