Chapter 10: Q.10.101 (page 360)

For each of the following: (10.2,10.3)
1. $H_{2} S$ 2. $H_{3} P O_{4}$
a. Write the formula for the conjugate base.
b. Which is the weaker acid?

Short Answer

Expert verified

Part (a) . For $H_{2} S$ - $H S^{-}$ and for $H_{3} P O_{4}$ - $H_{2} P {O_{4}}^{-}$

Part (b) . $H_{2} S$ is weaker

Step by step solution

Information 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.

Explanation Part (a)

A conjugate base is shaped when a proton is eliminated from an acid.

Hence,

The conjugate base of $H_{2} S$ is $H S^{-}$ due to the loss of one $H^{+}$ ion.

The conjugate base of $H_{3} {PO}_{4} is H_{2} {PO}_{4}^{-}$ due to the loss of one $H^{+}$ ion.

Explanation Part (b)

A stronger conjugate base means a weak acid.

Thus,

H_{2} S

is the weaker acid as

H S^{-}

is a stronger conjugate base than

H_{2} P {O_{4}}^{-}

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For each of the following: (10.2,10.3)
1. $H_{2} S$ 2. $H_{3} P O_{4}$
a. Write the formula for the conjugate base.
b. Which is the weaker acid?

Short Answer

Step by step solution

Information Part (a)

Explanation Part (a)

Explanation Part (b)

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For each of the following: (10.2,10.3)1. H2S 2.H3PO4 a. Write the formula for the conjugate base.b. Which is the weaker acid?

Short Answer

Step by step solution

Information Part (a)

Explanation Part (a)

Explanation Part (b)

One App. One Place for Learning.

Most popular questions from this chapter

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For each of the following: (10.2,10.3)
1. $H_{2} S$ 2. $H_{3} P O_{4}$
a. Write the formula for the conjugate base.
b. Which is the weaker acid?