Solution-What must be done to confirm the absence of this

What must be done to confirm the absence of this

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Reference no: EM132441668

1. An unknown containing cations from Group 1 (Hg2^2+, Ag+, Pb^2+) was treated with HCL. A white precipitate formed which was completely soluble in hot water.

What ion(s) must be present (although still in need of confirmation)?
What ion(s) must be absent?

Now that you have figured out what ion(s) were in the unknown, write net ionic equations for:

(a) the formation of the precipitate

(b) the dissolving of the precipitate

2. An unknown containing cations from Group I was treated with HCl. A white precipitate formed, which appeared to be completely insoluble in hot water. The precipitate dissolved completely in NH3 to leave a clear solution.

What ion(s) must be present (although still in need of confirmation)?
What ion(s) seem to be absent? What must be done to confirm the absence of this/these ions(s)?
Now that you have figured out what was in the unknown, write net ionic equations for each of the observations made during analysis.

Reference no: EM132441668

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What must be done to confirm the absence of this

Reference no: EM132441668

Reference no: EM132441668

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