February 28, 2017

Homework Help: percipitate and colour

Posted by Reen on Sunday, January 24, 2010 at 7:01pm.

a few drops of NaOH are added to a sample of the unknown. A blue precipitate appears. Next, approximately 1mL of ammonia, NH3, is added. The precipitate dissolves, but the solution remains blue. Which ion is present. Explain

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