37P Rank the following species in or... [FREE SOLUTION]

Chapter 2: 37P (page 139)

Rank the following species in order of increasing acidity. Explain your reasons for ordering them as you do.

Short Answer

Expert verified

$K_{a}$ is known as the acid dissociation constant and its value indicates the relative strength of the acid. is defined as the negative logarithm (base ) of . Mathematically, . value of strong acids is usually zero or even negative while the value of weaker acids are greater than .

Step by step solution

Ka and pKa

Species in order of increasing acidity

The strength of an acid or base is given by itsvalue. The smallervalue means stronger is the acid while the largervalue means stronger is the base.

$\begin{array}{l} {pK}_{a} 鈥夆赌塷蹿鈥夆赌夆赌塇贵鈥夆赌�=鈥夆赌�3.87 \\ {pK}_{a} 鈥夆赌塷蹿鈥夆赌夆赌塇颁狈鈥夆赌�=鈥夆赌�9.23 \\ {pK}_{a} {鈥夆赌塷蹿鈥夆赌夆赌塏贬}_{3} 鈥夆赌�=鈥夆赌�36 \\ {pK}_{a} {鈥夆赌塷蹿鈥夆赌夆赌塇}_{2} {SO}_{4} 鈥夆赌�=鈥夆赌�-2.8 \\ {pK}_{a} 鈥夆赌塷蹿鈥夆赌夆赌塇COOH鈥夆€�=鈥夆€�3.76 \\ {pK}_{a} {鈥夆赌塷蹿鈥夆赌夆赌塁贬}_{4} 鈥夆赌�=鈥夆赌�50 \\ {pK}_{a} {鈥夆赌塷蹿鈥夆赌夆赌塇}_{2} 翱鈥夆赌�=鈥夆赌�15.7 \end{array}$