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Chapter 16: Problem 4

The \(\mathrm{p} K_{2} \mathrm{~s}\) of two monoprotic acids \(\mathrm{HA}\) and \(\mathrm{HB}\) are 5.9 and \(8.1,\) respectively. Which of the two is the stronger acid?

Short Answer

Expert verified
HA is the stronger acid as it has a lower pK2s value.

Step by step solution

01

Understand pK2s values

In chemistry, the pK2s value (acid dissociation constant) is a measure of the strength of an acid in solution. It is calculated based on the concentration of the acid's conjugate base and the acid's concentration when the acid is in equilibrium in an aqueous solution. A lower pK2s value indicates a stronger acid.
02

Compare given pK2s values

The pK2s values of the two acids HA and HB were given to be 5.9 and 8.1 respectively. Based on the principle stated in step 1, the acid with the lower pK2s value here is HA. Therefore, HA is the stronger acid.

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