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Chapter 10: Q.10.104 (page 360)

Identify the conjugate acid-base pairs in each of the following equations:

a.HNO2(aq)+HS鈭�(aq)鈬�NO2鈭�(aq)+H2S(g)

b.HCl(aq)+OH鈭�(aq)鉄�Cl鈭�(aq)+H2O(l)

Short Answer

Expert verified

Part (a) . HS鈭�(aq)鈫�H2S(aq)and HCl(aq)鈫�Cl鈭�(aq)

Part (b) . H2O(l)鈫�OH鈭�(aq)and HNO2(aq)鈫�NO2鈭�(aq)

Step by step solution

01

Given Information (Part a)

In the Br酶nsted-Lowry meaning of acids and bases, a conjugate acid-base pair comprises two substances that vary exclusively by the presence of a proton. A conjugate acid is framed when a proton is added to a base, and a conjugate base is shaped when a proton is eliminated from an acid.

02

Explanation Part (a)

A conjugate acid is framed when a proton is added to a base, and a conjugate base is shaped when a proton is eliminated from an acid.

Hence,

the conjugate acid-base pairs are,

HS鈭�(aq)鈫�H2S(aq)andHCl(aq)鈫�Cl鈭�(aq)

03

Explanation Part (b)

A conjugate acid is framed when a proton is added to a base, and a conjugate base is shaped when a proton is eliminated from an acid.

Hence,

the conjugate acid-base pairs are,

H2O(l)鈫�OH鈭�(aq)andHNO2(aq)鈫�NO2鈭�(aq)

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Most popular questions from this chapter

Write formulas for each of the following acids and bases:

a. barium hydroxide

b. hydroiodic acid

c. bromic acid

d. strontium hydroxide

e. acetic acid

f. hypochlorous acid

Name each of the following acids or bases:

a.Hcl

b.Ca(OH)2

c.HclO4

d.HNO3

e.H2SO3

f.HBrO2

Write the balanced chemical equation for the neutralization reaction of stomach acid HCL with Al(OH)3, an ingredient in some antacids.

Adding a few drops of a strong acid io water will lower the phi appreciably. However, adding the same number of drags to a buffer does not appreciably alter the ph. Why? (10.8)

Calculate the [OH-]of each aqueous solution with the following [H3O+]:

a. oven cleaner, 1.0脳10-12M

b. milk of magnesia, 1.0脳10-9M

c. aspirin, 6.0脳10-4M

d. pancreatic juice,4.0脳10-9M
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