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Chemistry Forums for Students => Undergraduate General Chemistry Forum => Topic started by: Maze940 on October 11, 2021, 01:02:56 PM

Title: Lab Practical
Post by: Maze940 on October 11, 2021, 01:02:56 PM
Sorry if anything is not formatted right. I just joined up.

I have been trying to write a procedure on how to precipitate all of the copper out of a 5 ml water sample, with three given solutions. (NaCl(aq), NaOH(aq), KI(aq)). Then I need to calculate the chosen solution needed to precipitate all of the copper(II) out of a 5.00 mL water sample without contaminating the water supply with an additional surplus of chemicals.

I think I know how to do the second portion of the problem but I need help with the first.
Title: Re: Lab Practical
Post by: Babcock_Hall on October 11, 2021, 02:06:06 PM
Can you explain what you think you should do and why?
Title: Re: Lab Practical
Post by: Orcio_87 on October 12, 2021, 08:20:11 AM
Quote
I think I know how to do the second portion of the problem but I need help with the first.
Did you heard about the solubility product ? You can use it to calculate concentration of Cu in CuCl2, Cu(OH)2 and CuI solutions.