Question

The diagram below shows an experiment involving chlorine water.

 

1. Chlorine water is a mixture of two acids. Explain using a chemical equation. 
2. State and explain the observation that was made after 24 hours.
3. Write an equation for the reaction that took place in (2) above.

Answer 1

1. Cl_2 (g) + H₂O _(l) → HCl _(aq) + HClO (aq) 
2. Yellow chlorine water turns colourless / Bubbles of a colourless gas  Chloric(I) acid decomposes in sunlight to form hydrochloric acid and oxygen gas
3. 2 HOCl _(aq)    →   2 HCl _(aq) + O2 _(g)