Cobalt hydroxide formation, 3 of 3. When 1.4M ammonia (NH4OH) is poured into a beaker with 0.2M cobalt(II) chloride (CoCl2), blue-green cobalt(II) hydroxide (Co(OH)2) is formed. The reaction is CoCl2 + NH3OH -> Co(OH)2 + NH4Cl. | |
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