Iodine Clock Reaction (AQA A-Level Chemistry): Flashcards

Blue-black

React with $I_2$ as formed, delay colour until consumed

10.0 cm³

25 cm³ of 1.0 $\text{mol dm}^{-3}$

Immediately when $H_2O_2$ added

Initial rate $(1/\text{time})$ vs $[\text{KI}]$

Use colourimeter to track absorbance

50 cm³ of 0.8 $\text{mol dm}^{-3}$

Gradient of line at $t = 0$

Zero