A buffer solution is a solution that can resist pH change upon the addition of an acidic or basic components. It is able to neutralize small amounts of added acid or base, thus maintaining the pH of the solution relatively stable. This is achieved by including a weak acid and its conjugate base or a weak base and its conjugate acid in the solution.

Let's analyze each pair:

1. 0.1M HC2H3O2 and 0.1M NaC2H3O2: This is a buffer solution. HC2H3O2 is a weak acid and NaC2H3O2 is its conjugate base.

2. 0.1M HC2H3O2 and 0.2M HC2H3O2: This is not a buffer solution. Both are the same compound, so there is no conjugate acid/base pair.

3. 0.1M HC2H3O2 and 0.1M HF: This is not a buffer solution. Both are weak acids, so there is no conjugate acid/base pair.

4. 0.1M HC2H3O2 and 0.1M NaCl: This is not a buffer solution. HC2H3O2 is a weak acid, but NaCl is a salt of a strong acid (HCl) and a strong base (NaOH), so it does not act as a conjugate base for HC2H3O2.

So, the buffer solution among the given pairs is 0.1M HC2H3O2 and 0.1M NaC2H3O2.

Question

A buffer solution is a solution that can resist pH change upon the addition of an acidic or basic components. It is able to neutralize small amounts of added acid or base, thus maintaining the pH of the solution relatively stable. This is achieved by including a weak acid and its conjugate base or a weak base and its conjugate acid in the solution.

Let's analyze each pair:

1. 0.1M HC2H3O2 and 0.1M NaC2H3O2: This is a buffer solution. HC2H3O2 is a weak acid and NaC2H3O2 is its conjugate base.

2. 0.1M HC2H3O2 and 0.2M HC2H3O2: This is not a buffer solution. Both are the same compound, so there is no conjugate acid/base pair.

3. 0.1M HC2H3O2 and 0.1M HF: This is not a buffer solution. Both are weak acids, so there is no conjugate acid/base pair.

4. 0.1M HC2H3O2 and 0.1M NaCl: This is not a buffer solution. HC2H3O2 is a weak acid, but NaCl is a salt of a strong acid (HCl) and a strong base (NaOH), so it does not act as a conjugate base for HC2H3O2.

So, the buffer solution among the given pairs is 0.1M HC2H3O2 and 0.1M NaC2H3O2.

Knowee AI · Accepted Answer

A buffer solution is a solution that can resist pH change upon the addition of an acidic or basic components. It is able to neutralize small amounts of added acid or base, thus maintaining the pH of the solution relatively stable. This is achieved by including a weak acid and its conjugate base or a weak base and its conjugate acid in the solution.

Let's analyze each pair:

1. 0.1M HC2H3O2 and 0.1M NaC2H3O2: This is a buffer solution. HC2H3O2 is a weak acid and NaC2H3O2 is its conjugate base.

2. 0.1M HC2H3O2 and 0.2M HC2H3O2: This is not a buffer solution. Both are the same compound, so there is no conjugate acid/base pair.

3. 0.1M HC2H3O2 and 0.1M HF: This is not a buffer solution. Both are weak acids, so there is no conjugate acid/base pair.

4. 0.1M HC2H3O2 and 0.1M NaCl: This is not a buffer solution. HC2H3O2 is a weak acid, but NaCl is a salt of a strong acid (HCl) and a strong base (NaOH), so it does not act as a conjugate base for HC2H3O2.

So, the buffer solution among the given pairs is 0.1M HC2H3O2 and 0.1M NaC2H3O2.

. Choose the buffer solution from the following pairs of compounds. Assume the volumes of the two components are equal.0.1M HC2H3O2 and 0.1M NaC2H3O20.1M HC2H3O2 and 0.2M HC2H3O20.1M HC2H3O2 and 0.1M HF0.1M HC2H3O2 and 0.1M NaCl

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