woelen Posted October 16, 2005 Share Posted October 16, 2005 The element copper remains a very special element to me. It keeps on giving strange results and I want to post one over here again. It is a really simple experiment, just add two chems to each other. In jsatan's words, I saw a "little thing", which I cannot neglect. The "little thing" here is that the copper (II) chloride turns very dark brown, almost black in the concentrated acid. When water is added, then it dissolves again and the results become predictable again. http://woelen.scheikunde.net/science/chem/riddles/copper+h2so4/index.html If anyone over here has an explanation for the observation, then I would be pleased to know. Link to comment Share on other sites More sharing options...
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!Register a new account
Already have an account? Sign in here.Sign In Now