Exhibit 16-1 Consider the equilibrium reaction below to answer the following question(s). HNO₂ + H₂ O H₃O + + NO₂ 1 - K a (HNO₂ ) = 4.5 10 - 4
-Refer to Exhibit 16-1. What is the effect of adding NaNO₂ to an aqueous solution of HNO₂ as shown in the equilibrium reaction above?

Question

Exhibit 16-1 Consider the equilibrium reaction below to answer the following question(s). HNO₂ + H₂ O  H₃O + + NO₂ 1 - K a (HNO₂ ) = 4.5 10 - 4
-Refer to Exhibit 16-1. What is the effect of adding NaNO₂ to an aqueous solution of HNO₂ as shown in the equilibrium reaction above?

Quizplus · Accepted Answer

NaNO₂ is a salt derived from the conjugate base of the weak acid, HNO₂. Adding NaNO₂ will increase [NO₂⁻] which will combine with H⁺ to form HNO₂, shifting the equilibrium to the left favoring the reactant side. This will result in an increase in [HNO₂], a decrease in [H₃O⁺], which will lead to an increase in pH.

Exhibit 16-1 Consider the Equilibrium Reaction Below to Answer the Following