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Chapter 2: Q12P (page 57)

Estimate the pKa values of the following compounds.

(a)CH3CH2CH2NH2

(b)CH3CH2CH2OH

(c)CH3CH2COOH

(d)CH3CH2CH2NH3+

Short Answer

Expert verified

(a)40

(b) 50

(c)5

(c)10

Step by step solution

01

Understanding the pKa values.

The strength of an acid is indicated using pKa values. The greater the pKa value, the weaker is the acidity of an acid. High the pKa value indicates that the acid does not dissociate fully.

02

Estimating the pKa values for Subpart (a):

For CH3CH2CH2NH2 , the pKa value is 40.

03

Estimating the pKa values for Subpart (b):

For CH3CH2CH2OH , the pKa value is 50.

04

Estimating the pKa values for Subpart (c):

For CH3CH2COOH , the pKa value is .5

05

Estimating the pKa values for Subpart (d):

For CH3CH2CH2NH3+ , the pKa value is 10.

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Most popular questions from this chapter

Which of the following bases can remove a proton from acetic acid in a reaction that favors products?

HO- CH3NH2 HC=C- CH3OH H2O Cl-

Question:Draw the products of the acid–base reaction when

a. HCl is the acid and NH3 is the base.

b. H2O is the acid and -NH2 is the base.

Which is the stronger acid?

a. CH3OH or CH3CH3

b. CH3OH or HF

c. CH3NH2 or HF

d. CH3NH2 or CH3OH

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

([H2O] = 55.5 M)

Are the following body fluids acidic or basic?

  1. Bile (pH=8.4)
  2. Urine (pH=5.9)
  3. Spinal fluid (pH=7.4)
See all solutions

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