practical 8- paper 1+3- measuring the EMF

Question 1

describe an experiment to measure the standard electrode potential for TiO2+

Answer 1

Stage 1:
- weigh 8g of TiOSO4
- dissolve in sulfuric acid
- transfer to volumetric flask and make up to the mark

Stage 2: set up the cell
- piece of Ti immersed in the solution
- connect solutions with salt bridge
- connect metals through voltmeter

Stage 3: measurements and calculation
- record potential difference
- E cell= Erhs-Ely’s
- use date to work out the EMF