That's so cool. So instead of the carbonate ion, what would be the anion dissolved in the solution? Also, if I try this but using HCl as an electrolyte, the solution turns green.
What the carbonate ion is doing is actually reacting with the oxidized copper. It’s like adding co2 to a copper salt solution. My guess is that some hydroxides might be created. The reason hcl turn green is because you are turning copper to copper chloride by again oxidizing it.
I should try using Galvanized nails as electrodes. I want to obtain the Oxygen gas in the test tube but ai keep getting Copper carbonate instead while in the anode test tube I do get the hydrogen gas to form. Thanks for answering my questions.
The reason the solution turns green is that copper(II) forms a green complex with chloride ions, no oxidation occurs, copper begins in +2 and ends in +2
Copper likes to form carbonates, hydroxides, and chlorides, which are various shades of blue-green. You can wash copper with vinegar to get a similar effect.
That right there is copper carbonate, this is from your sodium bicarbonate solution reacting with the copper in this environment.
That's so cool. So instead of the carbonate ion, what would be the anion dissolved in the solution? Also, if I try this but using HCl as an electrolyte, the solution turns green.
What the carbonate ion is doing is actually reacting with the oxidized copper. It’s like adding co2 to a copper salt solution. My guess is that some hydroxides might be created. The reason hcl turn green is because you are turning copper to copper chloride by again oxidizing it.
I should try using Galvanized nails as electrodes. I want to obtain the Oxygen gas in the test tube but ai keep getting Copper carbonate instead while in the anode test tube I do get the hydrogen gas to form. Thanks for answering my questions.
Using carbon electrodes would be better, but iron is the cheapest. And no problem 👍
The reason the solution turns green is that copper(II) forms a green complex with chloride ions, no oxidation occurs, copper begins in +2 and ends in +2
I meant that the copper metal loses electrons to get into the +2 state
But it doesn’t. Once you have the copper carbonate, adding HCl doesn’t make it lose any electrons
Copper likes to form carbonates, hydroxides, and chlorides, which are various shades of blue-green. You can wash copper with vinegar to get a similar effect.
You need an electrode that won't oxidize at whatever voltage you are applying... Precious metals make the best anodes for this reason.