Question

Do the equilibria of the following acid–base reactions lie to the right or the left? (The pKa of H₂O₂ is 11.6.)

Short answer

The 1^st equilibrium lies to the right but the 2^nd equilibrium lies to the left.

Step-by-step solution

Definition of equilibrium-

a static (as in a body acted on by forces whose resultant is zero) or dynamic state of balance between opposing forces or actions (as in a reversible chemical reaction when the velocities in both directions are equal).

Find the following acid–base reactions lie to the right or the left for the first reaction

Because HOOH (pKa=11.6) is a stronger acid than H2O (pKa=15.7), the first equilibrium is to the right.

Find the following acid–base reactions lie to the right or the left for the second reaction

Because alkyne (pKa=25) is a weaker acid than HOOH (pKa=15.7), the second equilibrium is to the left.