[becchino]

Hello friends.. another question:

Pharmacopoeia affirms that:

Standardisation. To 10.0 mL of 0.033 M potassium bromate, add 40 mL of water R, 10 mL of potassium iodide solution R and 5 mL of hydrochloric acid R1. Titrate with the sodium thiosulfate solution, using 1 mL of starch solution R, added towards the end of the titration, as indicator.

OK... but... what is the formula to calculate the correction factor of the solution???! 

[Hunter2]

What is your own attempt. Develop the equations of the used chemicals and calculate how much iodine correcpond to Thiosulfat theoretically. Compare this with the result after do the titration.