Homework Help: CHEMISTRY

Posted by PLEASE on Sunday, October 16, 2011 at 7:31pm.

What is the reagent responsible for the formation of H2S in the qualitative analysis of group II?

when the cations are separated into subgroups, what is the purpose of the potassium hydroxide,KOH?

CHEMISTRY - DrBob222, Sunday, October 16, 2011 at 9:13pm
I have no idea what your lab procedure is. You could be using H2S gas or you could be generating H2S in situ by using thioacetamide and heating the solution.

What do you thing the KOH does?

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