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A student in CHEM 2102 was traying to precipitate La3+ as La(OH)3 starting from acidic solution of 0.010 M La3+. (Ksp value for La(OH)3 =2 x10-21)   Suggest a chemical reagent that can be used to precipitate La3+as La(OH)3 At what pH the precipitation will occur

A student in CHEM 2102 was traying to precipitate La3+ as La(OH)3 starting from acidic solution of 0.010 M La3+. (Ksp value for La(OH)3 =2 x10-21)   Suggest a chemical reagent that can be used to precipitate La3+as La(OH)3 At what pH the precipitation will occur

Chemistry: The Molecular Science
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter19: The Chemistry Of The Main-group Elements
Section: Chapter Questions
Problem 64QRT
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Lanthanum and other rare-earth compounds are used in carbon arc lighting, specifically in the film and television industry for studio lighting and projection. A student in CHEM 2102 was traying to precipitate La3+ as La(OH)3 starting from acidic solution of 0.010 M La3+. (Ksp value for La(OH)3 =2 x10-21)

 

  1. Suggest a chemical reagent that can be used to precipitate La3+as La(OH)3
  2. At what pH the precipitation will occur
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