DRAFT: This module has unpublished changes.

Materials

 

-Test tube (10), 10-mL

-Test tube rack

-Pipet, graduated, 10-mL

-Rubber bulb

-Pipet, plastic (7), 1-mL

-Centrifuge

-Beaker, 250-mL

-Stirring rod

-Hot plate

-pH paper (1 roll)

-6 M Sodium hydroxide (NaOH), 20 mL

-6 M Ammonia (NH3), 20 mL

-0.1 M Potassium chromate (K2CrO4), 20 mL

-1% Aluminon dye, 2 mL

-6 M Hydrochloric acid (HCl), 20 mL

-Dimethylgloxime (DMG) reagent, 5 drops

-0.2 M Potassium ferrocyanide (K4[Fe(CN)6]), 2 mL

-3 M Sulfuric acid (H2SO4), 3mL

-3% Hydrogen peroxide (H2O2), 2 mL

-Uknown cation solution, 20 mL

-Deionized water, 5 mL

-Marking pen

DRAFT: This module has unpublished changes.
DRAFT: This module has unpublished changes.