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Chapter 2: Q20P (page 61)

Rank the ions (-CH3, -NH2, HO-, and F-) from most basic to least basic.

Short Answer

Expert verified

-CH3>-NH2,>HO->F-

Step by step solution

01

Understanding basic strength.

All the above-given ions are conjugate bases of acids. In order to categorize them according to their basic strength, we need to compare the acidity of the respective acids. The acid with the least acidity will have the most basic conjugate base.

02

Ranking the ions from most basic to least basic.

Order of acidic strength:CH4>NH3,>H2O->HF

Order of basicity: -CH3>-NH2,>HO->F-

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Most popular questions from this chapter

Estimate the pKa values of the following compounds.

(a)CH3CH2CH2NH2

(b)CH3CH2CH2OH

(c)CH3CH2COOH

(d)CH3CH2CH2NH3+

Question: Draw the conjugate acid for each of the following:

Question:An acid has a Ka of 4.53 脳10-6 in water. What is its Keq for reaction with water in a dilute solution?

([H2O] = 55.5 M)

Which is the stronger acid?

a. CH3CH3 or HC 鈮H

b. H2C= CH2or HC鈮� CH

c. H2C =CH2 or CH3CH3

Citrus fruits are rich in citric acid, a compound with three COOH groups. Explain the following:

a. The first pKa (for the COOH group in the center of the molecule) is lower than the pKa of acetic acid.

b. The third pKa is greater than the pKa of acetic acid.
See all solutions

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