Question

Consider the following equilibrium for nitrous acid, HNO2, a weak acid: HNO2(aq) + H2O (l) —><— H3O+ (aq) +NO2^-(aq) In which direction will the equilibrium shift if The acid solution is made more dilute?

Answer 1

When the acid is Diluted more number of Hydronium ions are produced.

Explanation:

• The equilibrium will shift in backward direction as nitrous acid $HNO_2$  is weaker acid and have less tendency to dissociate in water.

• Hence, formation of reactants will be more favourable  than the formation of products.

• When the acid is more diluted more number of hydronium ions are produced hence the direction of equilibrium will shift to forward direction.