Electrochemistry Content

Question 1

Purpose of a salt bridge

Answer 1

1) to complete the circuit

2) maintaining electrical neutrality in the half cells (by allowing a flow of anions into the oxidised reaction, and a flow of cations into the reduced reaction)

Question 2

Examples of electrolytes

Answer 2

Nitrate and sulphate
(Coz their highly soluble)

Question 3

Standard hydrogen electrode
(How it works)

Answer 3

1) connect the standard hydrogen half cell to the half cell of the electrode you need the Emf value of
2) voltmeter reading shows the emf of the other half cell (coz std has an emf of 0,00V)