0
What else can I help you with?
What is a substance that resists a pH change when small amounts of acid or base are added?
A buffer solution is a substance that resists changes in pH when small amounts of acid or base are added. Buffers are typically composed of a weak acid and its conjugate base (or a weak base and its conjugate acid) that can neutralize added acid or base without drastic changes in pH.
Why buffer resist change in PH when small amount of acid or base is added?
Buffers resist changes in pH when small amounts of acid or base are added because they contain a weak acid and its conjugate base (or a weak base and its conjugate acid). This allows them to neutralize small amounts of added acid or base through a reversible reaction, helping maintain a relatively constant pH.
How can we calculate the change in pH when a strong acid is added to a buffer solution?
When a strong acid is added to a buffer solution, the change in pH can be calculated using the Henderson-Hasselbalch equation, which is pH pKa log(A-/HA), where pKa is the acid dissociation constant of the weak acid in the buffer, A- is the concentration of the conjugate base, and HA is the concentration of the weak acid. By plugging in the initial concentrations of the weak acid and its conjugate base, along with the amount of strong acid added, you can determine the change in pH of the buffer solution.
What is the change in pH when NaOH is added to a buffer and how can it be calculated?
When NaOH is added to a buffer, the change in pH can be calculated using the Henderson-Hasselbalch equation. This equation is pH pKa log(A-/HA), where pKa is the acid dissociation constant of the weak acid in the buffer, A- is the concentration of the conjugate base, and HA is the concentration of the weak acid. By plugging in the initial concentrations of the weak acid and its conjugate base, as well as the amount of NaOH added, you can calculate the change in pH.
which of the following best describes a solution that contains a buffer?
sodium hydroxide, a base, is added to the solution, but the pH of the solution does not change.
What is a substance that resists a pH change when small amounts of acid or base are added?
A buffer solution is a substance that resists changes in pH when small amounts of acid or base are added. Buffers are typically composed of a weak acid and its conjugate base (or a weak base and its conjugate acid) that can neutralize added acid or base without drastic changes in pH.
Why buffer resist change in PH when small amount of acid or base is added?
Buffers resist changes in pH when small amounts of acid or base are added because they contain a weak acid and its conjugate base (or a weak base and its conjugate acid). This allows them to neutralize small amounts of added acid or base through a reversible reaction, helping maintain a relatively constant pH.
Describe a solution that contains a buffer?
Acetic acid is added to the solution, but the pH of the solution does not change. Sodium hydroxide, a base, is added to the solution, but the pH of the solution does not change.
How can we calculate the change in pH when a strong acid is added to a buffer solution?
When a strong acid is added to a buffer solution, the change in pH can be calculated using the Henderson-Hasselbalch equation, which is pH pKa log(A-/HA), where pKa is the acid dissociation constant of the weak acid in the buffer, A- is the concentration of the conjugate base, and HA is the concentration of the weak acid. By plugging in the initial concentrations of the weak acid and its conjugate base, along with the amount of strong acid added, you can determine the change in pH of the buffer solution.
What is the change in pH when NaOH is added to a buffer and how can it be calculated?
When NaOH is added to a buffer, the change in pH can be calculated using the Henderson-Hasselbalch equation. This equation is pH pKa log(A-/HA), where pKa is the acid dissociation constant of the weak acid in the buffer, A- is the concentration of the conjugate base, and HA is the concentration of the weak acid. By plugging in the initial concentrations of the weak acid and its conjugate base, as well as the amount of NaOH added, you can calculate the change in pH.
which of the following best describes a solution that contains a buffer?
sodium hydroxide, a base, is added to the solution, but the pH of the solution does not change.
How do you calculate the buffering capacity of a solution?
The buffering capacity of a solution is calculated by determining the amount of acid or base that can be added to the solution before the pH changes significantly. This is typically done by measuring the initial pH of the solution, adding a small amount of acid or base, and then measuring the change in pH. The buffering capacity is then calculated as the amount of acid or base added divided by the change in pH.
How does a buffer resist change in pH upon addition of a strong acid?
A buffer resists change in pH upon addition of a strong acid because it contains a weak acid and its conjugate base (or a weak base and its conjugate acid) which can neutralize the added acid by donating or accepting protons, thus maintaining the pH. The weak acid and its conjugate base components in the buffer solution help to absorb the added protons or hydroxide ions without significant change in pH.
Can a buffer change pH only a small amount even if large amounts of acid or base are added?
Yes, a buffer can resist changes in pH by maintaining a relatively constant pH even when large amounts of acid or base are added. Buffers work by reacting with added acid or base to minimize changes in pH.
Which solution (showed a little or not change in pH why?
A solution that shows little or no change in pH when an acid or base is added is typically a buffer solution. Buffers consist of a weak acid and its conjugate base or a weak base and its conjugate acid, which help resist changes in pH by neutralizing added acids or bases. This ability to maintain a stable pH is crucial in many biological and chemical processes where a specific pH range is necessary for optimal function.
How do buffers work in chemistry to maintain a stable pH level?
Buffers in chemistry work by resisting changes in pH when an acid or base is added. They contain a weak acid and its conjugate base, or a weak base and its conjugate acid. When an acid is added, the base in the buffer neutralizes it, and when a base is added, the acid in the buffer neutralizes it. This helps maintain a stable pH level in a solution.
How does the way a buffer stabilizes pH during addition of acid differ from the way the same buffer stabilizes pH during addition of base?
H+ and OH- ion responsible for acidic and basic behaviour are consumed by oppositely charged ions present in buffer solution to form a weak acid or base which is not much efficient to release H+ or oH- ion so pH does not change. But this happens only when strong acid or base is added to buffer in small amount.
