Answered

Find trusted answers to your questions with the help of IDNLearn.com's knowledgeable community. Get the information you need from our community of experts, who provide detailed and trustworthy answers.

For the reaction [tex]$CH _3 COOH \rightarrow CH _3 COO ^{-}+ H ^{+}$[/tex], which statement is true?

A. [tex]CH _3 COOH[/tex] is a Brønsted-Lowry base.
B. [tex]CH _3 COOH[/tex] is a Brønsted-Lowry acid.
C. [tex]CH _3 COO ^{-}[/tex] is an Arrhenius base.
D. [tex]CH _3 COO ^{-}[/tex] is a Lewis base.

Sagot :

GinnyAnsweridn
To determine the validity of each statement regarding the reaction:

[tex]\[ CH_3COOH \rightarrow CH_3COO^{-} + H^{+} \][/tex]

we need to analyze the roles of [tex]\(CH_3COOH\)[/tex] and [tex]\(CH_3COO^{-}\)[/tex] based on different definitions of acids and bases.

1. Statement: [tex]\(CH_3COOH\)[/tex] is a Brønsted-Lowry base.

The Brønsted-Lowry theory defines an acid as a proton (H[tex]\(^+\)[/tex]) donor and a base as a proton acceptor. In the reaction

[tex]\[ CH_3COOH \rightarrow CH_3COO^{-} + H^{+}, \][/tex]

[tex]\(CH_3COOH\)[/tex] is donating a proton (H[tex]\(^+\)[/tex]), hence it acts as a Brønsted-Lowry acid, not a base. Therefore, this statement is False.

2. Statement: [tex]\(CH_3COOH\)[/tex] is a Brønsted-Lowry acid.

As mentioned above, since [tex]\(CH_3COOH\)[/tex] donates a proton (H[tex]\(^+\)[/tex]), it is a Brønsted-Lowry acid. Thus, this statement is True.

3. Statement: [tex]\(CH_3COO^{-}\)[/tex] is an Arrhenius base.

The Arrhenius definition states that an Arrhenius base is a substance that increases the concentration of OH[tex]\(^-\)[/tex] ions in aqueous solution. In this reaction, [tex]\(CH_3COO^{-}\)[/tex] does not directly release OH[tex]\(^-\)[/tex] ions. Thus, this statement is False.

4. Statement: [tex]\(CH_3COO^{-}\)[/tex] is a Lewis base.

According to the Lewis definition, a base is a substance that donates an electron pair. The acetate ion ([tex]\(CH_3COO^{-}\)[/tex]) has lone pairs of electrons that it can donate, qualifying it as a Lewis base. Hence, this statement is True.

So, summarizing the evaluation of the statements:

1. False - [tex]\(CH_3COOH\)[/tex] is not a Brønsted-Lowry base.
2. True - [tex]\(CH_3COOH\)[/tex] is a Brønsted-Lowry acid.
3. False - [tex]\(CH_3COO^{-}\)[/tex] is not an Arrhenius base.
4. True - [tex]\(CH_3COO^{-}\)[/tex] is a Lewis base.

Therefore, the correct answer is:

[tex]\[ (False, True, False, True) \][/tex]
We are happy to have you as part of our community. Keep asking, answering, and sharing your insights. Together, we can create a valuable knowledge resource. Your questions are important to us at IDNLearn.com. Thanks for stopping by, and come back for more reliable solutions.