Question

Conjugate acid/base problems: a. What are the conjugate bases of the molecules: i. C6H5OH? ii. CH3-SH iii. CH3-CH2-CO2H b. What are the conjugate acids of the molecules: i. CH3–(CH2)-CO2- ii. CH3–(CH2)-NH2 iii. Ring at right 

Answer 1

Explanation:

In a Brønsted-Lowry acid-base reaction, a conjugate acid is the species formed after the base accepts a proton. By contrast, a conjugate base is the species formed after an acid donates its proton.

Proton = H⁺

This means for the molecules that requires us to look for their conjugate bases, we simply remove a proton to it.

a. What are the conjugate bases of the molecules:

i C6H5OH : C6H5O⁻

ii. CH3-SH : CH3-S⁻

iii. CH3-CH2-CO2H : CH3-CH2-COO⁻

The molecules that requires us to look for their conjugate acids, we simply add a proton to it.

b. What are the conjugate acids of the molecules:

i. CH3–(CH2)-CO2- :  i. CH3–(CH2)-COOH

ii. CH3–(CH2)-NH2 : ii. CH3–(CH2)-NH3⁺

iii. Ring at right ?