Sulfuric Acid Section – Daily Question for December 22

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This post was last edited by melao on 2011-12-22 08:39. A colorless solution may contain several of the following sodium salts: A. Sodium chloride B. Sodium sulfide C. Sodium sulfite D. Sodium thiosulfate E. Sodium sulfate F. Sodium carbonate. When an appropriate amount of dilute sulfuric acid is added to this solution, a pale yellow precipitate forms, along with the release of gas. This gas has the smell of rotten eggs, can turn clear lime water cloudy, and cannot decolorize the magenta solution. Answer the following questions based on the above experimental observations. ?(1) If it cannot decolorize the magenta test solution, it indicates that the gas does not contain (fill in the molecular formula). (2) Which sodium salts are present in this colorless solution at least? Please list all possible cases (write the corresponding letters). ?The first situation is, the second situation is, the third situation is, the fourth situation is (it can be left blank or additional information can be added)