Chemistry Electrolysis Flashcards
What is the aim?
To investigate what happens hen aqueous solutions are electrolysed using inert electrodes
What is electrolysis
A process in which electrical energy is used to drive a chemical reaction.
Inert definition
Lacking the ability to move, act or react either physically or chemically
Electrode meaning
A conductor through which electricity enters or leaves an object, substance or region
What will you perform with
Aqueous solutions of copper chloride and sodium chloride using inert carbon electrodes
How will you know if the solution becomes acidic
The blue litmus paper will turn red
What happens to the blue litmus paper if the solutions becomes an alkaline
The blue litmus paper will remain blue
What id the purpose of using blue litmus paper in this experiment
To test the pH of the solution after electrolysis
What is the purpose of repeating the experiment with the sodium chloride solution
To compare the effects of different electrolytes
In electrolysis, what is the name of the negative electrode
Cathode
What happens at the anode during electrolysis?
At the anode, negative ions lose electrons
