A student follows the procedure in this lab and finds a dark (black-brown) sulfi
ID: 967309 • Letter: A
Question
A student follows the procedure in this lab and finds a dark (black-brown) sulfide precipitate at the first branching of the flow chart in the lab manual. Then none of the precipitate dissolves when 3 M KOH is added. What cation(s) may be present in this sample? Select all correct answers. Bismuth Lead Copper TinA student follows the procedure in this lab and finds a dark (black-brown) sulfide precipitate at the first branching of the flow chart in the lab manual. Then none of the precipitate dissolves when 3 M KOH is added. What cation(s) may be present in this sample? Select all correct answers. Bismuth Lead Copper Tin
A student follows the procedure in this lab and finds a dark (black-brown) sulfide precipitate at the first branching of the flow chart in the lab manual. Then none of the precipitate dissolves when 3 M KOH is added. What cation(s) may be present in this sample? Select all correct answers. Bismuth Lead Copper Tin
Explanation / Answer
The sulfides of Bismuth, lead and copper will not react with KOH as they are solids since i.p > Ksp.
Related Questions
Hire Me For All Your Tutoring Needs
Integrity-first tutoring: clear explanations, guidance, and feedback.
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.