Why do group 1 cations form precipitates when mixed with hcl?

1 answer:

8 0

Both of you are overlooking a pretty big component of the question...the Group I cation isn't being dissociated into water. We're testing the solubility of the cation when mixed with HCl. And this IS a legitimate question, seeing as our lab manual is the one asking.

By the way, the answer you're looking for is "Because Group I cations have insoluble chlorides". 

"In order...to distinguish cation Group I, one adds HCl to a sample. If a Group I cation is present in the sample, a precipitate will form."

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