1.) You have a solution that contains the following cations: Ag+, K+, and Fe+3.
ID: 486096 • Letter: 1
Question
1.) You have a solution that contains the following cations: Ag+, K+, and Fe+3. You first add a few drops of 1 M HCl to the mixture.
a.) What will you observe? Include colors and appearance
b.) what cations, if any, will be present in the filtrate?
c.) what cation, if any, will be present in the precipitate?
2.) After centrifuging and separation of the layers obtained above, you add a few drops of 3 M H2SO4 to the liquid obtained above.
a.) What will you observe? Include colors and appearance
b.) What cations, if any, will be present in the solution?
c.) What cations, if any, will be present in the precipitate?
3.) Again, after centrifuging and separation of the layers obtained in step two above, you add 2 M NaOH to the liquid obtained above until the solution is slightly basic.
a.) What will you observe? Include colors and appearance
b.) What cations, if any, will be present in the solution?
c.) What cations, if any, will be present in the precipitate?
ost Questions Lab few drops of 1 M HCI the mi tam c. what cations, any w br. presentin the protipeala? AO 2 ging and ton of layers obtairwad above. drops of M 50, to the liquid above 7 include and appeal a What you observe b. What cations, ramy, wilt present in the adulon? e What cations, it any, wil be present in thi prDocrat"? 3. Again ater cent fuging and separaton ottha layers netained n step two abcve, you add 2 M NaOH the soution is slightly basic obsDrve? Inckade colors and appearance. b. What cations, if any, wil be present in the scluion? c. What cations, any wil be present in the preceitala?Explanation / Answer
1.(a) On adding a few drops of 1 M HCl to the mixture white precipitate of AgCl will be observed. Further, If excess HCl were added, then after complete consumption of all Ag+, the excess HCl would react with Fe+3 to give light yellowish FeCl3.
b) Filtrate will contain Fe+3 and K+ cations
c) AgCl will be precipitated. Hence, the residue will contain Ag+ ions
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