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Chapter 10: Q.10.103 (page 360)

Identify the conjugate acid-base pairs in each of the following equations:
a. ${NH}_{3} (a q) + {HNO}_{3} (a q) 鉄� {NH}_{4}^{+} (a q) + {NO}_{3}^{鈭�} (a q)$
b. $H_{2} O (l) + HBr (a q) 鉄� H_{3} O^{+} (a q) + {Br}^{鈭�} (a q)$

Short Answer

Expert verified

Part (a) . ${NH}_{3} (a q) / {NH}_{4}^{+} (a q) a n d {HNO}_{3} (a q) / {NO}_{3}^{鈭�} (a q)$

Part (b) . $H_{2} O (l) / H_{3} O^{+} (a q) a n d HBr (a q) / B r^{鈭�} (a q)$

Step by step solution

01

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 (H鈦�). 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-base pair comprises two substances that vary exclusively by the presence of a proton $H^{+}$ . 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.

The conjugate acid-base pair is,

${NH}_{3} (a q) 鈫� {NH}_{4}^{+} (a q) and {HNO}_{3} (a q) 鈫� {NO}_{3}^{鈭�} (a q)$

03

Explanation Part (b)

A conjugate acid-base pair comprises two substances that vary exclusively by the presence of a proton $H^{+}$ . 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.

The conjugate acid-base pair is,

$H_{2} O (I) 鈫� H_{3} O^{+} (a q) and HBr (a q) 鈫� {Br}^{鈭�} (a q)$

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Most popular questions from this chapter

Calculate the $[O H^{-}]$ of each aqueous solution with the following $[H_{3} O^{+}]$ :

a. coffee, $1.0 脳 10^{- 5} M$

b. soap, $1.0 脳 10^{- 8} M$

c. cleanser, $5.0 脳 10^{- 10} M$

d. lemon juice, $2.5 脳 10^{- 2} M$

Calculate the $[H_{3} O^{+}]$ of each aqueous solution with the following $[O H^{-}]$ :

a. baking soda, $1.0 脳 10^{- 6} M$

b. blood, $2.5 脳 10^{- 7} M$

c. milk, $4.0 脳 10^{- 7} M$

d. bleach, $2.1 脳 10^{- 3} M$

10.25 Why are the concentrations of $H_{3} O^{+}$ and ${OH}^{-}$ equal in pure water?

Identify each of the following as an acid, base, or salt, and give its name: (10.1)

a. $H_{3} {PO}_{4}$

b. $M g B r$ ?

c. ${NH}_{3}$

d. ${HClO}_{2}$

e. $NaCl$

When food enters the stomach, $HCl$ is released and the $[H_{3} O^{+}]$ of the stomach fluid rises to $4 脳 10^{- 2} M$ . What is the $pH$ of the stomach fluid?

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