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Type: Multiple-Choice
Category: Analytical Methods
Level: Grade 12
Tags: Gravimetry
Author: radiance
Last Modified: 6 years ago

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Grade 12 Analytical Methods

Complete the following reaction, which summarizes the gravimetric estimation of iron:

Fe3++3OH-Fe(OH)3(s)
2Fe(OH)3(s)
  1. Fe2O3(s)+3H2O
  2. Fe3O4+2H2O
  3. Fe2O3+2H2O
  4. Fe3O4+3H2O