Purpose To Identify The Group 1 Cation In The Given Unknown Sample Theory Answer The Following Question In Your Own Wor 1 (56.48 KiB) Viewed 11 times
Purpose To Identify The Group 1 Cation In The Given Unknown Sample Theory Answer The Following Question In Your Own Wor 2 (20.97 KiB) Viewed 11 times
Purpose To Identify The Group 1 Cation In The Given Unknown Sample Theory Answer The Following Question In Your Own Wor 3 (35.11 KiB) Viewed 11 times
Purpose: To identify the group 1 cation in the given unknown sample Theory Answer the following question in your own words. Use full sentences in paragraph form in the space provided. Reference your sources. 1. A student was given a solid white sample and was told that it could contain any of the following three compounds; silver chloride (AgCl), mercury(1) chloride (Hg2Cl₂), or lead(II) chloride (PbCl₂). Firstly, the student added hot distilled water to the solid white sample in a test tube and heated the sample in a hot water bath. Next, the student centrifuged the test tube and separated the decantate and the precipitate into separate test tubes. The white precipitate was saved for further testing. The decantate was tested by adding potassium chromate (K₂CrO4), and a yellow precipitate was observed. The student then added ammonium hydroxide (NH4OH) to the other test tube that contained the saved white precipitate and the solid completely dissolved. Nitric acid (HNO3) was added to this liquid and a cloudy white solution was observed. Based on the observations reported above, determine which cations were present in the unknown sample provided to this student. For each cation, describe what evidence was used to help determine the presence of each ion. If possible, use chemical equations to help support your conclusions. (3 marks)
Table 2: Experimental observations of H₂SO4 (ag) being added to the other half of the decantate. (2 marks) Standard Sample Unknown Sample Observations Conclusion
Ammonium hydroxide (NH4OH) is added to the saved precipitate from step 11 in the procedure. Describe the observations below. Table 3. Experimental observations of NH4OH being added to the precipitate. (2 marks) Standard Sample Unknown Sample Observations Conclusion Part 4: Step 14 in the Procedure Table 4. Experimental observations of HNO3 being added to the decantate. (2 marks) Standard Sample Unknown Sample Observations Conclusion Conclusion (2 marks) Reference(s) APA format only (1 mark) E
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