4) You are given a solution and asked to determine which Group I cations are present in it. Addition of hydrochloric acid results in the formation of a precipitate. The precipitate is washed with hot deionized water. When the filtrate from hot water washing is tested with potassium chromate solution, a precipitate forms. When a solution of ammonia is added to the remaining precipitate from the addition of HCI, the remaining precipitate dissolves. What do you conclude?

Introductory Chemistry: A Foundation
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ISBN:9781337399425
Author:Steven S. Zumdahl, Donald J. DeCoste
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Chapter7: Reactions In Aqueous Solutions
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4) You are given a solution and asked to determine which Group I cations are present in
it. Addition of hydrochloric acid results in the formation of a precipitate. The
precipitate is washed with hot deionized water. When the filtrate from hot water
washing is tested with potassium chromate solution, a precipitate forms. When a
solution of ammonia is added to the remaining precipitate from the addition of HCI,
the remaining precipitate dissolves. What do you conclude?
Transcribed Image Text:4) You are given a solution and asked to determine which Group I cations are present in it. Addition of hydrochloric acid results in the formation of a precipitate. The precipitate is washed with hot deionized water. When the filtrate from hot water washing is tested with potassium chromate solution, a precipitate forms. When a solution of ammonia is added to the remaining precipitate from the addition of HCI, the remaining precipitate dissolves. What do you conclude?
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