[Aerosion]

Okay, so I just want to confirm a conclusion that I've already made.

See, I did a lab in school, and separated Ag⁺ and Hg²⁺₂ using 6M NH₃.  I also added 6M NH₃ to an unknown solution to separate...well, unknown elements.

Anyway, the book says that the precipitate will turn grey if there's Hg²⁺ and the supernatant would turn clear if NH₃ was in it.  And it did, for both the known and the unknown.

So would I be right in concluding that both of the cations are present for the known and the unknown, because the results are basically the same thing?  Thanks.

[AWK]

If Hg(I) is present, the precipitate will be gray. To test presence of Ag(I), add an excess of HNO3 to clear ammonia solution. White precipitate indicate the presence of Ag(I).