[iDominant]

Would CuS be more soluble in an acidic solution than pure water?
Thanks in advance for the help

[Arkcon]

I'd like to welcome you, IiDominant: to the Chemical Forums.  According to the Forum Rules{click}, we want to see your attempt, so please click on that link, read the contents, and comply with our rules, so we can help you. 

There are a number of different phenomena possibly at work with your plan.  What concepts are you acquainted with?  This will become tedious rapidly, if all you intend to do is ask, "OK, well how about this ..." "Ok well try this ..."