Discover the answers to your questions at Westonci.ca, where experts share their knowledge and insights with you. Ask your questions and receive accurate answers from professionals with extensive experience in various fields on our platform. Discover in-depth answers to your questions from a wide network of professionals on our user-friendly Q&A platform.

Use the following table to answer the question:

[tex]\[
\begin{array}{|l|l|l|l|}
\hline
\text{Strong acids} & \text{Weak acids} & \text{Weak bases} & \text{Strong bases} \\
\hline
\text{HBr} & \text{CH}_3\text{COOH} & \text{NH}_3 & \text{NaOH} \\
\hline
\text{HNO}_3 & \text{HF} & \text{NH}_4\text{OH} & \text{KOH} \\
\hline
\text{H}_2\text{SO}_4 & \text{HCN} & & \text{Ca(OH)}_2 \\
\hline
\end{array}
\][/tex]

Which reaction would yield a neutral salt?

A. [tex]\(2 \text{NaOH} + \text{H}_2\text{SO}_4\)[/tex]

B. [tex]\(\text{NaOH} + \text{HCN}\)[/tex]

C. [tex]\(\text{KOH} + \text{HF}\)[/tex]

D. [tex]\(2 \text{NH}_4\text{OH} + \text{H}_2\text{SO}_4\)[/tex]


Sagot :

To determine which reaction would yield a neutral salt, we need to analyze the nature of the acids and bases involved in each reaction given in the table.

1. [tex]$2 NaOH + H_2SO_4$[/tex]
- [tex]\(NaOH\)[/tex] is listed under strong bases.
- [tex]\(H_2SO_4\)[/tex] is listed under strong acids.
- A strong acid reacting with a strong base typically results in a neutral salt.
- Reaction: [tex]\(2 NaOH (strong\, base) + H_2SO_4 (strong\, acid)\)[/tex]
Yields a neutral salt ([tex]\(Na_2SO_4\)[/tex]) and water.

2. [tex]$NaOH + HCN$[/tex]
- [tex]\(NaOH\)[/tex] is listed under strong bases.
- [tex]\(HCN\)[/tex] is listed under weak acids.
- A strong base reacting with a weak acid results in a basic salt.
- Therefore, this reaction does not produce a neutral salt.

3. [tex]$KOH + HF$[/tex]
- [tex]\(KOH\)[/tex] is listed under strong bases.
- [tex]\(HF\)[/tex] is listed under weak acids.
- A strong base reacting with a weak acid results in a basic salt.
- Therefore, this reaction does not produce a neutral salt.

4. [tex]$2 NH_4OH + H_2SO_4$[/tex]
- [tex]\(NH_4OH\)[/tex] is listed under weak bases.
- [tex]\(H_2SO_4\)[/tex] is listed under strong acids.
- A weak base reacting with a strong acid results in an acidic salt.
- Therefore, this reaction does not produce a neutral salt.

From the above analysis, we can conclude that the reaction:

[tex]$2 NaOH + H_2SO_4$[/tex]

is the one that yields a neutral salt.