In this experiment, the rate of decomposition is calculated by measuring the volume of the product gas using water displacement.
Decomposition of Bleach
Introduction
In this experiment, the rate of decomposition is calculated by measuring the volume of the product gas using water displacement. The reactant used is household bleach, which contains 5 to 6% of NaClO. The decomposition can be stated in this following equation:
2 ClO- (aq) → 2 Cl- (aq) + O2 (g)
To measure the rate of decomposition, a catalyst is needed to fasten the reaction. A suitable catalyst is Co2O3, which is produced from mixing Co(NO3)2 and bleach. The reaction can be described as follows: