Abnormal heart rhythms disrupt blood circulation and can lead to severe health p

Question

Abnormal heart rhythms disrupt blood circulation and can lead to severe health problems. These abnormal rhythms are treated with drugs that regulate heart rate. One of these drugs, procainamide (PCA), undergoes add hydrolysis. The table shows data gathered for the hydrolysis reaction at three different temperatures starting with a concentration of 17 mM (1.7 Times 10^-2 M) PCA and a pH = 4. A chemist has proposed the following reaction mechanism for the hydrolysis of PCA: What is the role of H_3O^+ in the above mechanism?

Explanation / Answer

answer : catalyst

Explanation :

here H3O+ is involved in step -1 of the process and regenerated in step -3 of the process. so it is catalyst.

because the function of catalyst is to increase the rate of reaction but does not involve in the reaction

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