Unknown B was treated with six drops of HCl. A precipitate was observed. Which of the following best describes the ion o...
Unknown B was treated with six drops of HCl. A precipitate was observed. Which of the following best describes the ion or group of ions that could be present?
Group of answer choices
Ag, Co and Pb
Na, Ag, and Pb
Hg, Ag, and Pb
Fe, Hg and Cr
Homework Answers
according to the solubility rules the all chloride are
soluble in water except the AgCl , Hg2Cl2 , PbCl2 which are not
soluble and they are insoluble solids i.e precipitate
here the Hg , Ag and Pb containing ions sample forms the AgCl , Hg2Cl2 , PbCl2 which are precipitates
NaCl , CoCl2 , FeCl2 , CrCl2 - soluble
answer => Hg , Ag and Pb
Add Answer to:
Unknown B was treated with six drops of HCl. A precipitate was observed. Which of the following best describes the ion o...
Unknown A was treated with six drops of HCl. A precipitate was observed. Which ion was...
Unknown A was treated with six drops of HCl. A precipitate was observed. Which ion was shown to be absent by this test? Group of answer choices Cr Hg Ag Pb
Ex: Separation of Group 1 Cations (Pb+ and Ag+) 10 drops of unknown was place along...
Ex: Separation of Group 1 Cations (Pb+ and Ag+) 10 drops of unknown was place along with 6 drops of 6M HCl, centrifuge. 2 more drops of 6M HCl, centrifuge. Decant supernate, use precipitate and add 5 drops of cold water, centrifuge. Test for Pb2+ 15 drops of water to precipitate & put in hot water, centrifuge then decant supernate. repeat x2 Combine supernates and save precipitate for Ag+ analysis. Add 3 drops of 1M K2CrO4 to supernate. yellow precipitate...
A solution containing a mixture of metal cations was treated as follows. 1. Dilute HCl was...
A solution containing a mixture of metal cations was treated as follows. 1. Dilute HCl was added and a precipitate formed. The precipitate was filtered off. 2. H,S was bubbled through the acidic solution. Again, a precipitate formed and was filtered off. 3. The pH was raised to about 9 and H, S was again bubbled through the solution. No precipitate formed. 4. Finally, sodium carbonate was added and no precipitate formed. What can be said about the presence of...
I concluded that my unknown was Pb2+. since yellow precipitate formed. can you help me answer...
I concluded that my unknown was Pb2+. since yellow
precipitate formed. can you help me answer the questions for the
Known and unknown report
Qualitative Analysis: Group I Cations 10 ORECTIVES A Leam some chemistry of Group I cations, R Analyze an unknown for Group I cations. THEORY AND DISCUSSION Group I cations are precipitated as insoluble chlorides: Ag, Pb, Hg2 +Cr-AgCl, PbCh, HgCla The colors of the following species will be helpful in the analysis for Group I cations....
A solution containing a mixture of metal cations was treated as outlined. 1. Dilute HCl was...
A solution containing a mixture of metal cations was treated as outlined. 1. Dilute HCl was added and a precipitate formed. The precipitate was filtered off. 2. H,S was bubbled through the acidic solution. Again, a precipitate formed and was filtered off. 3. The pH was raised to about 9 and H,S was again bubbled through the solution. No precipitate formed. 4. Finally, sodium carbonate was added. A precipitate formed and was filtered off. What can be said about the...
A solution containing a mixture of metal cations was treated with dilute HCl and no precipitate...
A solution containing a mixture of metal cations was treated with dilute HCl and no precipitate formed. Next, H, S was bubbled through the acidic solution. A precipitate formed and was filtered off. Then, the pH was raised to about 8 and HS was again bubbled through the solution. A precipitate again formed and was filtered off. Finally, the solution was treated with a sodium carbonate solution, which resulted in no precipitation Classify the metal ions based on whether they...
Solution A reacts with hydrochloric acid solution to form a white precipitate. Which of the following...
Solution A reacts with hydrochloric acid solution to form a white precipitate. Which of the following ions is most likely present in solution A? Group of answer choices Iron (II) ion Aluminum ion Silver ion Ammonium ion
I need help figuring out the flowchart and if I have the right answers for the...
I need help figuring out the flowchart and if I have the right
answers for the prelab please and thank you!
Group I, the Chloride Group BACKGROUND The precipitating reagent for the chloride group is chloride ion in an acidic solution. Only three of the 18 metal ions form a precipitate with this reagent: silver ion (Ag'), mercury(I)ion (Hg). and lead ion (Pb). Since lead chloride is somewhat soluble, it is not completely precipitated here, and a low concentration of...
UNKNOWN NUMBER Indicate observed results in the appropriate square. If no precipate is observed, record an...
UNKNOWN NUMBER Indicate observed results in the appropriate square. If no precipate is observed, record an S for soluble. If a slight cloudiness is observed, record an SS for slightly soluble. If a precipitate is observed, record an I for insoluble Record the color and appearance of precipitate in cach case. Anion d | Br” | IP | Co” so OH S1- Cation Ae chory vedow Whichodr Mg Screar I burt Biun Dari Branta Iss- crestul anfte Iss. Crystal white...
A solution was known to contain both Ag1+ ions and Fe3+ ions? Which of the following could be added to separate them in...
A solution was known to contain both Ag1+ ions and Fe3+ ions? Which of the following could be added to separate them in such a way that one ion would end up in a precipitate, while the other remained in solution. Group of answer choices K2CrO4 HCl NH4OH H2O
A solution containing a mixture of metal cations was treated as follows. 1. Dilute HCl was added and a precipitate formed. The precipitate was filtered off. 2. H,S was bubbled through the acidic solution. Again, a precipitate formed and was filtered off. 3. The pH was raised to about 9 and H, S was again bubbled through the solution. No precipitate formed. 4. Finally, sodium carbonate was added and no precipitate formed. What can be said about the presence of...
I concluded that my unknown was Pb2+. since yellow
precipitate formed. can you help me answer the questions for the
Known and unknown report
Qualitative Analysis: Group I Cations 10 ORECTIVES A Leam some chemistry of Group I cations, R Analyze an unknown for Group I cations. THEORY AND DISCUSSION Group I cations are precipitated as insoluble chlorides: Ag, Pb, Hg2 +Cr-AgCl, PbCh, HgCla The colors of the following species will be helpful in the analysis for Group I cations....
A solution containing a mixture of metal cations was treated as outlined. 1. Dilute HCl was added and a precipitate formed. The precipitate was filtered off. 2. H,S was bubbled through the acidic solution. Again, a precipitate formed and was filtered off. 3. The pH was raised to about 9 and H,S was again bubbled through the solution. No precipitate formed. 4. Finally, sodium carbonate was added. A precipitate formed and was filtered off. What can be said about the...
A solution containing a mixture of metal cations was treated with dilute HCl and no precipitate formed. Next, H, S was bubbled through the acidic solution. A precipitate formed and was filtered off. Then, the pH was raised to about 8 and HS was again bubbled through the solution. A precipitate again formed and was filtered off. Finally, the solution was treated with a sodium carbonate solution, which resulted in no precipitation Classify the metal ions based on whether they...
I need help figuring out the flowchart and if I have the right
answers for the prelab please and thank you!
Group I, the Chloride Group BACKGROUND The precipitating reagent for the chloride group is chloride ion in an acidic solution. Only three of the 18 metal ions form a precipitate with this reagent: silver ion (Ag'), mercury(I)ion (Hg). and lead ion (Pb). Since lead chloride is somewhat soluble, it is not completely precipitated here, and a low concentration of...
UNKNOWN NUMBER Indicate observed results in the appropriate square. If no precipate is observed, record an S for soluble. If a slight cloudiness is observed, record an SS for slightly soluble. If a precipitate is observed, record an I for insoluble Record the color and appearance of precipitate in cach case. Anion d | Br” | IP | Co” so OH S1- Cation Ae chory vedow Whichodr Mg Screar I burt Biun Dari Branta Iss- crestul anfte Iss. Crystal white...
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