Rationale 2 - Amber LeJeune Group 3 Unknown Solution...

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Amber LeJeune Group 3 Unknown Solution Rationales Ions Present: Ni 2+ , Mn 2+ , Al 3+ Ions Absent: Fe 2+ , Co 2+ , Zn 2+ Ni 2+ is present To an unknown solution, 6 M NaOH (aq) was added and a brown precipitate was formed. The brown precipitate was Ni(OH) 2(s) because it is insoluble according to the hydroxide ion solubility ion. Upon adding 6 M HNO 3(aq) a brown solution, Ni 2+ , was formed. To that brown solution, 6 M NH 3(aq) was added and a brown precipitate was formed along with a strawberry solution. [Ni(NH 3 ) 6 ] 2+ (aq) is the brown precipitate and strawberry solution formed therefore Ni 2+ (aq) may be present. When H 2 DMG was added to the decantate, a strawberry precipitate was form. Ni(HDMG) 2(s) is the strawberry precipitate. Ni 2+ (aq) is present in the original unknown sample. Mn 2+ is present. To an unknown solution, 6 M NaOH (aq) was added and a brown precipitate was formed. The brown precipitate was Mn(OH) 2 because it is insoluble according to the hydroxide ion solubility ion. Upon adding 6 M HNO
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Rationale 2 - Amber LeJeune Group 3 Unknown Solution...

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