A student was given a solid containing a mixture of nitrate slats. The sample completely dissolved in water, and upon addition of dilute HCI, no precipitate formed. The pH was lowered to about 1 and H2S was bubbled through the solution. No precipitate performed. The pH was adjusted to 8 and H2S was again bubbled in. This time, a precipitate formed. Which compounds might have been present in the unknown? (Select all) Ni(NO 3)2, NaNO3, Al(NO3)3, AgNO3, Sn(NO3)4, Ca(NO3)2, Co(NO3)2, Pb( NO3)2

A student was given a solid containing a mixture of nitrate slats. The sample completely dissolved in water, and upon addition of dilute HCI, no precipitate formed. The pH was lowered to about 1 and H2S was bubbled through the solution. No precipitate performed. The pH was adjusted to 8 and H2S was again bubbled in. This time, a precipitate formed. Which compounds might have been present in the unknown? (Select all) Ni(NO 3)2, NaNO3, Al(NO3)3, AgNO3, Sn(NO3)4, Ca(NO3)2, Co(NO3)2, Pb( NO3)2

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter15: Complex Ion And Precipitation Equilibria

Section: Chapter Questions

Problem 37QAP

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