In: Chemistry
Predict the products of the reaction below . Be your equation is balanced
HC1O3 + KOH ---->
HClO3 is a strong acid ( pKa = -1 ) and is also a strong oxidizing agent. When heated it suffers decomposition into chlorine di-oxide , perchloric acid and water.
3HClO3 = HClO4 + 2ClO2 (g) + H2O
However , it also undergores neutralization reaction due to its strong acidic charecter with a strong base as KOH at low temperature only . The balanced chemical equation for its reaction with KOH is represented as:
HClO3 + KOH = KClO3 + H2 O
It should be noted that chloric acid is a 40% solution of HClO3 in water and further concentration leads to its decomposition as
3HClO3 = HClO4 + Cl2 + 2O2 + H2O
hence , a dilute solution would undergo the above reaction at low temperature only , due to its strong acidic charecter. The K+ ions & ClO3- ions are then regarded as spectator ions.The reaction , therefore, follows the net ionic reaction as-
HClO3 <-------> H+ + ClO3-
KOH (aq) <-----------> K+ + OH-
H+ + OH- = H2 O
===================================================================================