Aqueous electrolysis Flashcards
1
Q
What does aqueous mean
A
When a substance is dissolved in water to form a solution
2
Q
Why would we dissolve an ionic compound for electrolysis
A
Molten/dissolved ionic compounds can conduct electricity
3
Q
What ions are present in molten ionic compounds
A
The only ions present are the ones in the compound
4
Q
What ions are present in aqueous ionic compounds
A
H+ and OH- ions are present from the water in addition to the ions in the compound.
5
Q
Non-metal preferences at the anode
A
Halide (group 7) ions such as Cl- and Br-
Hydroxide ions as OH-
Sulphate/Nitrate ions such as (SO4)2- and (NO3)-
