The Problem: Using the materials within the laboratory, you and your lab partner
ID: 971776 • Letter: T
Question
The Problem: Using the materials within the laboratory, you and your lab partner must design and carry out an experiment to determine the composition of an unknown. The unknown provided contain two cations - silver and sodium. Your experiment should be designed to isolate one of the cations fro the unknown using a combination of solubility properties and separation techniques learned during tf semester. Once isolated, the concentration of the selected ion should be determined and reported below. Your experiment should be designed so as to produce the most accurate and precise results as possible. You and your lab partner will turn in a joint report. The report should contain the following: Purpose of the Lab Brief Introduction Procedure (with clear, specific details regarding your experimental design) Data Tables Calculations Conclusions This cover sheet should be stapled to your report, in addition to any scratch paper used during this lab. In addition, fill in the information obtained from your experiment with regards to your unknown below Unknown Number:___ Concentration of Isolated Cation:___.Explanation / Answer
Unknown
The said mixture contains Ag+ and Na+ ions. Ag+ belongs to the Group-I metal cation. Na+ belong to Group-V metal cations.
Ag+ forms an insoluble salt when 6M HCl is added to a mixture of Ag+ and Na+.
Ag+ + Cl- ---> AgCl(s)
Na+ remained soluble. The precipitate is separated which is AgCl.
Na+ + Cl- ---> NaCl(aq)
The solution left contains Na+.
thus we have separated the two ions.
Related Questions
Hire Me For All Your Tutoring Needs
Integrity-first tutoring: clear explanations, guidance, and feedback.
Drop an Email at
drjack9650@gmail.com
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.